grilo-plugins: adjust CONFIGURE_ARGS

Removed unused flags, and added --enable-compile-warnings=minimum to
avoid a build failure with fortify-headers:
In file included from [staging_dir/target]/usr/include/libxml2/libxml/tree.h:15:0,
                 from [staging_dir/target]/usr/include/libxml2/libxml/parser.h:16,
                 from grl-jamendo.c:32:
[staging_dir/toolchain]/include/fortify/stdio.h: In function 'snprintf':
[staging_dir/toolchain]/include/fortify/stdio.h:99:2: error: format not
a string literal, argument types not checked [-Werror=format-nonliteral]
  return __orig_snprintf(__s, __n, __f, __builtin_va_arg_pack());
  ^~~~~~

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

multimedia/grilo-plugins/Makefile

@@ -48,9 +48,7 @@ endef
 
 CONFIGURE_ARGS += \
         --enable-static \
-        --without-libiconv-prefix \
-        --without-libintl-prefix \
-        --without-x \
+        --enable-compile-warnings=minimum
 
 MAKE_FLAGS += \
         GLIB_COMPILE_RESOURCES="$(STAGING_DIR_HOSTPKG)/bin/glib-compile-resources"