fix(networking): NetworkClientRxBuffer::clear() may not always clear

[TD-er]

Description of Change

See discussion in issue #10288

Related links

Fixes: #10288

[github-actions[bot]]

Warnings

:warning:

**Some issues found for the commit messages in this PR:** - the commit message `"NetworkClientRxBuffer::clear() may not always clear (#10288)"`: - *summary* looks empty - *type/action* looks empty *** **Please fix these commit messages** - here are some basic tips: - follow [Conventional Commits style](https://www.conventionalcommits.org/en/v1.0.0/) - correct format of commit message should be: `(): `, for example `fix(esp32): Fixed startup timeout issue` - allowed types are: `change,ci,docs,feat,fix,refactor,remove,revert,test` - sufficiently descriptive message summary should be between 20 to 72 characters and start with upper case letter - avoid Jira references in commit messages (unavailable/irrelevant for our customers) `TIP:` Install pre-commit hooks and run this check when committing (uses the [Conventional Precommit Linter](https://github.com/espressif/conventional-precommit-linter)).

👋 Hello TD-er, we appreciate your contribution to this project!

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[github-actions[bot]]

Test Results

 56 files   -  83   56 suites   - 83   4m 55s :stopwatch: - 1h 37m 28s  21 tests  -   9   21 :white_check_mark:  -   9  0 :zzz: ±0  0 :x: ±0  135 runs   - 168  135 :white_check_mark:  - 168  0 :zzz: ±0  0 :x: ±0 

Results for commit 2835ceb9. ± Comparison against base commit 4e9eb357.

This pull request removes 9 tests.

``` performance.coremark.test_coremark ‑ test_coremark performance.fibonacci.test_fibonacci ‑ test_fibonacci performance.psramspeed.test_psramspeed ‑ test_psramspeed performance.ramspeed.test_ramspeed ‑ test_ramspeed performance.superpi.test_superpi ‑ test_superpi test_touch_errors test_touch_interrtupt test_touch_read validation.periman.test_periman ‑ test_periman ```

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

Memory	FLASH [bytes]		FLASH [%]		RAM [bytes]		RAM [%]
Target	DEC	INC	DEC	INC	DEC	INC	DEC	INC
ESP32S3	:green_heart: -16	:warning: +12	0.00	0.00	0	0	0.00	0.00
ESP32S2	:green_heart: -24	:warning: +12	0.00	0.00	0	0	0.00	0.00
ESP32C3	0	:warning: +12	0.00	0.00	0	0	0.00	0.00
ESP32C6	0	:warning: +10	0.00	0.00	0	0	0.00	0.00
ESP32H2	0	:warning: +10	0.00	0.00	0	0	0.00	0.00
ESP32	0	:warning: +16	0.00	0.00	0	0	0.00	0.00

Click to expand the detailed deltas report [usage change in BYTES]

Target	ESP32S3		ESP32S2		ESP32C3		ESP32C6		ESP32H2		ESP32
Example	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM
Ethernet/examples/ETH_W5500_Arduino_SPI	0	0	0	0	:warning: +10	0	:warning: +10	0	:warning: +10	0	:warning: +16	0
Ethernet/examples/ETH_W5500_IDF_SPI	0	0	0	0	:warning: +10	0	:warning: +10	0	:warning: +10	0	:warning: +12	0
Ethernet/examples/ETH_WIFI_BRIDGE	0	0	0	0	0	0	0	0	-	-	0	0
NetworkClientSecure/examples/WiFiClientInsecure	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientPSK	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientSecure	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientSecureEnterprise	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientSecureProtocolUpgrade	0	0	:warning: +12	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientShowPeerCredentials	:green_heart: -16	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
NetworkClientSecure/examples/WiFiClientTrustOnFirstUse	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	0	0
PPP/examples/PPP_Basic	0	0	0	0	:warning: +10	0	:warning: +10	0	:warning: +10	0	:warning: +12	0
PPP/examples/PPP_WIFI_BRIDGE	0	0	0	0	0	0	0	0	-	-	0	0
WebServer/examples/AdvancedWebServer	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/FSBrowser	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/Filters	:warning: +4	0	:warning: +12	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HelloServer	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpAdvancedAuth	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpAuthCallback	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpAuthCallbackInline	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpBasicAuth	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpBasicAuthSHA1	0	0	0	0	:warning: +12	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/HttpBasicAuthSHA1orBearerToken	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/MultiHomedServers	0	0	:warning: +12	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/PathArgServer	:warning: +12	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/SDWebServer	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WebServer/examples/SimpleAuthentification	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +16	0
WebServer/examples/UploadHugeFile	0	0	:green_heart: -24	0	:warning: +10	0	:warning: +10	0	-	-	0	0
WebServer/examples/WebServer	:warning: +12	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +4	0
WebServer/examples/WebUpdate	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/FTM/FTM_Initiator	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/FTM/FTM_Responder	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/SimpleWiFiServer	:warning: +12	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WPS	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiAccessPoint	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +16	0
WiFi/examples/WiFiBlueToothSwitch	0	0	-	-	0	0	0	0	-	-	0	0
WiFi/examples/WiFiClient	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiClientBasic	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiClientConnect	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiClientEnterprise	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiClientEvents	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiClientStaticIP	:warning: +12	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiExtender	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiIPv6	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiMulti	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiMultiAdvanced	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiScan	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiScanAsync	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiScanDualAntenna	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiScanTime	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiSmartConfig	0	0	0	0	0	0	0	0	-	-	0	0
WiFi/examples/WiFiTelnetToSerial	0	0	0	0	:warning: +10	0	:warning: +10	0	-	-	:warning: +12	0
WiFi/examples/WiFiUDPClient	0	0	0	0	0	0	0	0	-	-	0	0
Ethernet/examples/ETH_LAN8720	-	-	-	-	-	-	-	-	-	-	:warning: +12	0
Ethernet/examples/ETH_TLK110	-	-	-	-	-	-	-	-	-	-	:warning: +12	0