Cleanup: Remove default assignment of colorFormat

The variants of the functions getFrameAtIndex, getFrameAtTime and
getImageAtIndex without the colorFormat parameter are not used. The
default assignment of colorFormat parameter is removed.

Bug: 298965955
Test: Build
Change-Id: I5f98786f3f5dfdd6d5e7183a29ef17934a40eef9
1 file changed