qtopia4: remove explisit include and library directories from configure call

This patch removes -I and -L from ./configure since it breaks cross-compiling.
The inclusion of -I and -L will confuse the host compiler when compiling the
host tools.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>

package/qtopia4/qtopia4.mk

@@ -342,8 +342,6 @@ endif
 		-no-rpath \
 		-nomake examples \
 		-nomake demos \
-		-I $(STAGING_DIR)/usr/include \
-		-L $(STAGING_DIR)/usr/lib \
 	)
 	touch $@