Change Details

Cleanup USES=go ports: - Switch to the new GO_TARGET tuple syntax - Remove custom build/install targets

Cleanup USES=go ports: - Remove custom build/install targets left in place after r505321 - Switch to the new GO_TARGET tuple syntax introduced in r512001

Cleanup USES=go ports: - Switch to the new GO_TARGET tuple syntax- Remove custom build/install targets left in place after r505321 - Remove custom build/install targets- Switch to the new GO_TARGET tuple syntax introduced in r512001