Proper clean up for EGLLockSurface3Test Perform unmakecurrent during test teardown Bug: angleproject:42264593 Change-Id: I1148b5c6631e81090f7ae931495bba1b43c24502 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6133539 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: mohan maiya <m.maiya@samsung.com>