Remove angle::Library and its usages No longer needed after https://chromium-review.googlesource.com/513519 Loading libGLESv2 interferes with API tracing tools BUG=angleproject:1892,angleproject:2343 Change-Id: I2ccbc99377d75d107fd644301402c52466dded21 Reviewed-on: https://chromium-review.googlesource.com/910094 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>