Remove obsolete compatibility links

* /usr/bin/strip would be replaced by a link, even when compiling
    binutils.
 * Updated minix-spec.h to use the correct dynamic linker, and removed
    the previously used symlinks.
 * Removed the patch to the builtin PATH of ld.elf_so.

Change-Id: I4dc8a7fb77a11638f5105a4e15b6c9be5add750e

libexec/ld.elf_so/Makefile

@@ -7,11 +7,6 @@ USE_BITCODE=no
 
 WARNS?=4
 
-# Minix Clang binaries references /libexec/ld.elf_so
-SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /libexec/ld.elf_so
-# And the minix gcc currently references /libexec/ld-elf.so.1
-SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /libexec/ld-elf.so.1
-
 # This needs to be before bsd.init.mk
 .if defined(BSD_MK_COMPAT_FILE)
 .include <${BSD_MK_COMPAT_FILE}>
@@ -74,7 +69,7 @@ CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
 
 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
 		map_object.c load.c search.c headers.c paths.c expand.c \
-		tls.c symver.c diagassert.c map_object_fallback.c 
+		tls.c symver.c diagassert.c map_object_fallback.c
 
 .if ${USE_FORT} == "yes"
 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc

libexec/ld.elf_so/rtld.h

@@ -49,7 +49,7 @@
 #if defined(_RTLD_SOURCE)
 
 #ifndef	RTLD_DEFAULT_LIBRARY_PATH
-#define	RTLD_DEFAULT_LIBRARY_PATH	"/lib:/usr/lib:/libexec"
+#define	RTLD_DEFAULT_LIBRARY_PATH	"/usr/lib"
 #endif
 #define _PATH_LD_HINTS			"/etc/ld.so.conf"