reptyr: remove musl.patch.

The patch is no longer necessary and also breaks the build on glibc.

srcpkgs/reptyr/patches/musl.patch

@@ -1,12 +0,0 @@
---- ptrace.h	2020-01-02 17:05:32.920795583 +0100
-+++ ptrace.h	2020-01-02 17:05:46.203324659 +0100
-@@ -22,6 +22,9 @@
- #ifndef PTRACE_H
- #define PTRACE_H
- 
-+#ifdef __linux__
-+#include <asm/ptrace.h>
-+#endif
- #include <sys/ptrace.h>
- #include <sys/types.h>
- #include <sys/user.h>