Revert of Benchmark designed to exercise fractional image scale/translation

gyp/bench.gypi

 {
   'include_dirs': [
     '../src/core',
     '../src/effects',
     '../src/gpu',
     '../src/utils',
     '../tools',
   ],
   'dependencies': [
     'etc1.gyp:libetc1',
     'skia_lib.gyp:skia_lib',
     'tools.gyp:resources',
     'tools.gyp:sk_tool_utils',
   ],
   'conditions': [
     ['skia_gpu == 1', {
       'include_dirs': [ '../src/gpu' ],
       'dependencies': [ 'gputest.gyp:skgputest' ],
     }],
   ],
   'sources': [
     '../bench/Benchmark.cpp',
     '../bench/Benchmark.h',
 
     '../bench/AAClipBench.cpp',
     '../bench/AlternatingColorPatternBench.cpp',
     '../bench/BitmapBench.cpp',
-    '../bench/BitmapFractionalBench.cpp',
     '../bench/BitmapRectBench.cpp',
     '../bench/BitmapScaleBench.cpp',
     '../bench/BlurBench.cpp',
     '../bench/BlurImageFilterBench.cpp',
     '../bench/BlurRectBench.cpp',
     '../bench/BlurRoundRectBench.cpp',
     '../bench/ChartBench.cpp',
     '../bench/ChecksumBench.cpp',
     '../bench/ChromeBench.cpp',
     '../bench/CmapBench.cpp',
@@ skipping 59 matching lines @@
     '../bench/StrokeBench.cpp',
     '../bench/TableBench.cpp',
     '../bench/TextBench.cpp',
     '../bench/TileBench.cpp',
     '../bench/VertBench.cpp',
     '../bench/WritePixelsBench.cpp',
     '../bench/WriterBench.cpp',
     '../bench/XfermodeBench.cpp',
   ],
 }