Don't build angle_end2end_tests_mac_sources on iOS Getting a compile error for them: ../../third_party/angle/src/tests/egl_tests/ EGLIOSurfaceClientBufferTest.cpp:16:10: fatal error: 'IOSurface/IOSurface.h' file not found include <IOSurface/IOSurface.h> ^~~~~~~~~~~~~~~~~~~~~~~ ../../third_party/angle/src/tests/egl_tests/ EGLIOSurfaceClientBufferTest.cpp:16:10: note: did not find header 'IOSurface.h' in framework 'IOSurface' (loaded from '/opt/s/w/ir/cache/xcode_ios_12a7209.app/Contents/ Developer/Platforms/iPhoneOS.platform/Developer/SDKs/ iPhoneOS14.0.sdk/System/Library/Frameworks') Bug: angleproject:5417 Change-Id: I60198bbacc0726a9842fe37fad5b10b9afff37a4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2628129 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>