opencv: remove BUILD_SHARED_LIBS flags

This CMake flag is now handled by the cmake-package infrastructure.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/opencv/opencv.mk

@@ -11,7 +11,6 @@ OPENCV_INSTALL_STAGING = YES
 
 OPENCV_CONF_OPT += \
 	-DCMAKE_BUILD_TYPE=$(if $(BR2_ENABLE_DEBUG),Debug,Release)   \
-	-DBUILD_SHARED_LIBS=$(if $(BR2_PREFER_STATIC_LIB),OFF,ON)    \
 	-DBUILD_WITH_STATIC_CRT=OFF                                  \
 	-DBUILD_DOCS=$(if $(BR2_HAVE_DOCUMENTATION),ON,OFF)          \
 	-DBUILD_EXAMPLES=OFF                                         \