Don't attempt to declare errno

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@53215 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/clean_temp.c

@@ -32,8 +32,6 @@
 #define BUF_MAX 4096
 #endif
 
-extern int errno;
-
 #define SLEEP 30		/* 30 seconds */
 
 /* Recursively scan the directory pathname, removing directory and files */

lib/init/lock.c

@@ -26,7 +26,6 @@
 ******************************************************************/
 
 #include <errno.h>
-extern int errno;
 
 int main(int argc, char *argv[])
 {