configure.ac: drop useless check for -fvisibility=hidden
We don't use this attribute in OsmoMGW anyway.
Change-Id: I61d08adbaaf938310f9474a1ea449e016a611ca3
diff --git a/configure.ac b/configure.ac
index 15976e6..a14c276 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,17 +76,6 @@
dnl Checks for typedefs, structures and compiler characteristics
-# The following test is taken from WebKit's webkit.m4
-saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -fvisibility=hidden "
-AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
-AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
- [ AC_MSG_RESULT([yes])
- SYMBOL_VISIBILITY="-fvisibility=hidden"],
- AC_MSG_RESULT([no]))
-CFLAGS="$saved_CFLAGS"
-AC_SUBST(SYMBOL_VISIBILITY)
-
AX_CHECK_COMPILE_FLAG([-Werror=implicit], [CFLAGS="$CFLAGS -Werror=implicit"])
AX_CHECK_COMPILE_FLAG([-Werror=maybe-uninitialized], [CFLAGS="$CFLAGS -Werror=maybe-uninitialized"])
AX_CHECK_COMPILE_FLAG([-Werror=memset-transposed-args], [CFLAGS="$CFLAGS -Werror=memset-transposed-args"])