[easytag] configure.ac: remove unneeded cruft

[David King <davidk src gnome org>]

commit 5668536fe70b842cafc2274f523fd3f080f97139
Author: Adrian Bunk <bunk stusta de>
Date:   Mon Jan 21 20:21:50 2013 +0200

    configure.ac: remove unneeded cruft
    
    This patch removes the following from configure.ac:
    - AC_TYPE_MODE_T (mode_t is not used)
    - AC_FUNC_FORK (the resulting HAVE_ defines are not used)
    - AC_CHECK_FUNCS() of mkdir strstr strtol
        (the resulting HAVE_ defines are not used)
    - AC_SEARCH_LIBS([strerror], [cposix]) (the only platform that ever
        needed it was Sun's INTERACTIVE Systems Corporation Unix, and
        that is unsupported since 2006)

 configure.ac |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3b7632f..01c68dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -273,7 +273,6 @@ AC_HEADER_DIRENT
 dnl -------------------------------
 dnl Checks for typedefs, structures, and compiler characteristics.
 dnl -------------------------------
-AC_TYPE_MODE_T
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
 
@@ -281,10 +280,7 @@ AC_TYPE_SIZE_T
 dnl -------------------------------
 dnl Checks for library functions.
 dnl -------------------------------
-AC_FUNC_FORK
-AC_CHECK_FUNCS([ftruncate gettimeofday mkdir mkstemp strstr strtol truncate])
-AC_SEARCH_LIBS([strerror], [cposix])
-
+AC_CHECK_FUNCS([ftruncate gettimeofday mkstemp truncate])
 
 AC_CONFIG_FILES([ Makefile
                   easytag.spec