Clean up trivially redundant __USE_MISC conditionals.

This patch cleans up cases of __USE_MISC that are trivially redundant
after the recent substitution of __USE_MISC for __USE_BSD and
__USE_SVID: either in constructs such as "defined __USE_MISC ||
defined __USE_MISC", or else (in the bits/mman.h case) a conditional
on __USE_MISC nested inside another __USE_MISC conditional.  (The
cleanups remaining after this patch are still quite large, but it
seems a reasonable piece to separate out.)

Tested x86_64.

	* bits/mman.h [__USE_MISC]: Remove redundant conditionals.
	* ctype/ctype.h [__USE_MISC]: Likewise.
	* dirent/dirent.h [__USE_MISC]: Likewise.
	* grp/grp.h [__USE_MISC]: Likewise.
	* io/fcntl.h [__USE_MISC]: Likewise.
	* io/sys/stat.h [__USE_MISC]: Likewise.
	* libio/stdio.h [__USE_MISC]: Likewise.
	* posix/unistd.h [__USE_MISC]: Likewise.
	* pwd/pwd.h [__USE_MISC]: Likewise.
	* stdlib.h [__USE_MISC]: Likewise.
	* string/bits/string2.h [__USE_MISC]: Likewise.
	* string/string.h [__USE_MISC]: Likewise.
	* time/time.h [__USE_MISC]: Likewise.

1 files changed, 2 insertions, 2 deletions

diff --git a/grp/grp.h b/grp/grp.h
index 7cae768..5bdc221 100644
--- a/grp/grp.h
+++ b/grp/grp.h
@@ -54,7 +54,7 @@ struct group
 #endif
 
 
-#if defined __USE_MISC || defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
 /* Rewind the group-file stream.
 
    This function is a possible cancellation point and therefore not
@@ -62,7 +62,7 @@ struct group
 extern void setgrent (void);
 #endif
 
-#if defined __USE_MISC || defined __USE_MISC || defined __USE_XOPEN_EXTENDED \
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED \
     || defined __USE_XOPEN2K8
 /* Close the group-file stream.