[yelp] Remove unused configure checks

[David King <davidk src gnome org>]

commit 0ce3a888a1e304c9a6b013612529a1dcef6813c6
Author: David King <amigadave amigadave com>
Date:   Tue Oct 20 12:12:11 2015 +0200

    Remove unused configure checks

 configure.ac |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 01d88aa..478192b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,10 +18,6 @@ AX_COMPILER_FLAGS([], [], [$ax_is_release])
 AC_PROG_CC
 AC_PROG_CC_C_O
 AC_PROG_LN_S
-
-AC_PATH_PROGS(SED, gsed sed)
-
-AM_PATH_GLIB_2_0
 GLIB_GSETTINGS
 
 # Library dependecies