Remove Gradle tasks wrapping `configure` tool

[wzieba]

Description

I'd like to propose removing wrapper tasks that aimed to help working with configure tool.

My arguments are as follows:

• They don't seem to be that useful: calling fastlane tasks is convenient, has a step-by-step guide and gives more customization like backing up files etc.
• Other projects (both Android and iOS) don't use any wrappers and don't report any issues with calling fastlane directly
• These tasks are not configuration-cache compatible (it'd be possible to adjust them, though)

Removing these tasks clear the configuration code and removes a few more tasks to maintain.

cc: @jkmassel if you have preference to leave this tasks. PR that introduce them is here for additional context: https://github.com/wordpress-mobile/WordPress-Android/pull/10864

[dangermattic]

	1 Warning
:warning:	PR is not assigned to a milestone.

Generated by :no_entry_sign: Danger

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21443-c573d26
	Commit	c573d263b29c15829042178745bdfcf2fb034d2d
	Direct Download	wordpress-prototype-build-pr21443-c573d26.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr21443-c573d26
	Commit	c573d263b29c15829042178745bdfcf2fb034d2d
	Direct Download	jetpack-prototype-build-pr21443-c573d26.apk

Note: Google Login is not supported on these builds.

[mokagio]

Nice. A single source of "truth" for how to do something.