perf-tools/tau: remove upstreamed portion of patch
#ifdef TAU_BGP
// *CWL* returns void ** but used directly as the FP.
---- tau-2.26.1/src/Profile/TauSampling.cpp 2017-11-21 15:11:52.429720127 +0100
-+++ tau-2.26.1/src/Profile/TauSampling.cpp.patched 2017-11-21 15:12:45.549707976 +0100
-@@ -417,7 +417,7 @@
- /* EVERYTHING ELSE SUPPORT */
-
- #else
-- struct ucontext *uc = (struct ucontext *)p;
-+ ucontext_t *uc = (ucontext_t *)p;
- struct sigcontext *sc;
- sc = (struct sigcontext *)&uc->uc_mcontext;
- #ifdef TAU_BGP
