go.sh: remove newlib-nano dir

Now that upstream crosstool supports building newlib-nano we remove
the output dir ${CT_PREFIX}/*/newlib-nano as we don't need those files
since we keep newlib nano files as part of the toolchain install.

Signed-off-by: Kumar Gala <[email protected]>

Author: galak

go.sh

@@ -112,6 +112,7 @@ for t in ${TARGETS}; do
 		if [ $? != 0 ]; then
 			exit 1
 		fi
+		rm -rf ${CT_PREFIX}/*/newlib-nano
 	fi
 
 	popd