Revert ":sparkles: Animation was applied to the splash screen."

[takahirom]

Reverts DroidKaigi/conference-app-2023#1050

I checked splash animation in API Level 30 emulator and I found the logo is cropped unexpectedly.

Screen_recording_20230912_094037.webm

[takahirom]

@Corvus400 Just for your information, let us revert this pr for 1.4.0

[github-actions[bot]]

Test Results

215 tests   215 :heavy_check_mark:  7m 3s :stopwatch:   11 suites      0 :zzz:   11 files        0 :x:

Results for commit fa6131e9.