Remove empty ShadowTextPaint

[utzcoz]

The implementation of ShadowPaint#measureText doesn't process text width correctly, and it can't be moved to ctesque. And
ShadowPaintTest#measureTextActuallyMeasuresLength tests does the same thing that ShadowTextPaintTest does, so it's safe to remove ShadowTextPaintTest.

[utzcoz]

@hoisie Looks like ShadowPaint#measureText doesn't behavior as AOSP: https://cs.android.com/android/platform/superproject/+/master:frameworks/base/graphics/java/android/graphics/Paint.java;l=2245-2266?q=Paint.java&ss=android. The ShadowPaint#measureText only care about text length, but doesn't care about text size.

[utzcoz]

And self-hosted runner broken again.

[hoisie]

Thanks! Weird how it was just an empty shadow.

[utzcoz]

Thanks! Weird how it was just an empty shadow.

The commit 4dda01d added ShadowTextPaint with measureText implementation. But I don't find relate commit to remove this implementation with git blame $(find . -iname ShadowTextPaint.java) and git log -- $(ind . -iname ShadowTextPaint.java). The ShadowPaint#measureText implementation has the same function as old ShadowTextPaint one. Maybe one folk found this behavior, and remove it from ShadowTextPaint or move it to ShadowPaint.