Revert "Fix and enable warning C4244 (Conversion from 'type1' to 'type2', possible loss of data)"

Causing a build failure on Mac/Clang:

./Tokenizer.cpp:551:7: error: extra tokens at end of #else directive [-Werror,-Wextra-tokens]
#else if defined(_MSC_VER)

http://build.chromium.org/p/chromium.gpu.fyi/builders/GPU%20Mac%20Builder/builds/29136

This reverts commit 3b26e231d99154814eb428f75a67bbe7a21adadc.

Change-Id: I2d11ddcc18130d908fd2ec3d6f5ab890cfccd5e7
Reviewed-on: https://chromium-review.googlesource.com/264983
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/tests/end2end_tests/BlendMinMaxTest.cpp b/src/tests/end2end_tests/BlendMinMaxTest.cpp
index 56a0877..8c02c5b 100644
--- a/src/tests/end2end_tests/BlendMinMaxTest.cpp
+++ b/src/tests/end2end_tests/BlendMinMaxTest.cpp
@@ -28,7 +28,7 @@
 
     static GLubyte getExpected(bool blendMin, float curColor, GLubyte prevColor)
     {
-        GLubyte curAsUbyte = static_cast<GLubyte>((curColor * std::numeric_limits<GLubyte>::max()) + 0.5f);
+        GLubyte curAsUbyte = (curColor * std::numeric_limits<GLubyte>::max()) + 0.5f;
         return blendMin ? std::min<GLubyte>(curAsUbyte, prevColor) : std::max<GLubyte>(curAsUbyte, prevColor);
     }