Remove link results from program hash The program hash should be independent of link output. The fragment shader output locations were being hashed in the program hash, but that should be unnecessary, as they are derived from the link input, which is already entirely present in the program hash. Bug: angleproject:1085 Bug: angleproject:8297 Change-Id: I4befd45c69c2f0d4d6d8b620167a07eedffd5098 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4817829 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>