Revert "valgrind: enable LTO and refresh patches"

This reverts commit 0331770299b1587a96285fd1af33afe6de4ecbb9.

With LTO enabled valgridn does not build on MIPS32 any more, deactivate
it for now. The patch refresh was not reverted.

Signed-off-by: Hauke Mehrtens <[email protected]>

package/devel/valgrind/Makefile

@@ -105,7 +105,6 @@ CONFIGURE_ARGS += \
 	--disable-valgrindtk \
 	--without-included-gettext \
 	--with-pagesize=4 \
-	--enable-lto
 
 define Package/valgrind/install	
 	$(INSTALL_DIR) $(1)/usr/bin