libtool-cross: Allow the compile to run else we can generate invalid (unpatched) libtool files

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/packages/libtool/libtool-cross_2.2.6.bb

@@ -1,6 +1,6 @@
 require libtool_${PV}.bb
 
-PR = "r30"
+PR = "r31"
 PACKAGES = ""
 SRC_URI_append = " file://cross_compile.patch;patch=1 \
                    file://prefix.patch;patch=1"
@@ -21,12 +21,6 @@ do_configure_prepend () {
 	rm -f ${STAGING_DATADIR}/aclocal/lt*.m4
 }
 
-do_compile () {
-       # Sometimes this file doesn't get rebuilt, force the issue
-       rm -f ${S}/libltdl/config/ltmain.sh
-       make libltdl/config/ltmain.sh
-}
-
 do_install () {
 	install -d ${D}${bindir}/
 	install -m 0755 ${HOST_SYS}-libtool ${D}${bindir}/${HOST_SYS}-libtool