strace: drop unnecessary musl/ppc patch

srcpkgs/strace/patches/ppc-musl.patch

@@ -1,16 +0,0 @@
---- regs.h
-+++ regs.h
-@@ -8,7 +8,13 @@
- #ifndef STRACE_REGS_H
- # define STRACE_REGS_H
- 
-+#if !defined(__GLIBC__) && defined(__powerpc__)
-+# define pt_regs musl_pt_regs
- # include <sys/user.h>
-+# undef pt_regs
-+#else
-+# include <sys/user.h>
-+#endif
- # include "arch_regs.h"
- 
- #endif /* !STRACE_REGS_H */