package/thrift: drop unrecognized option

WITH_QT4 has been dropped since version 0.13.0 and
https://github.com/apache/thrift/commit/17355425429274e7971fff39d7e45279cdf550fa

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/thrift/thrift.mk

@@ -20,7 +20,6 @@ THRIFT_COMMON_CONF_OPTS = -DBUILD_TUTORIALS=OFF \
 	-DBUILD_TESTING=OFF \
 	-DWITH_PYTHON=OFF \
 	-DWITH_JAVA=OFF \
-	-DWITH_QT4=OFF \
 	-DWITH_QT5=OFF
 
 THRIFT_CONF_OPTS = $(THRIFT_COMMON_CONF_OPTS) -DBUILD_COMPILER=OFF