Revert "Make all fragment shader out variables require location layout qualifier" Causes a warning on Windows: compiler\translator\ValidateOutputs.cpp(37): warning C4804: '>' : unsafe use of type 'bool' in operation BUG=angleproject:1070 This reverts commit 140941d066c11238ba4f2f15647fb2d65ae56faf. Change-Id: Ieed42cdda22f17c6e15c38ee1c059184869e6919 Reviewed-on: https://chromium-review.googlesource.com/286820 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>