fbv: remove redundant --static flag to pkg-config

The pkg-config tool is automatically passing --static when BR2_STATIC_LIBS
is set (see package/pkgconf/pkgconf.mk), so no need to pass it explicitly
from package .mk files.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/fbv/fbv.mk

@@ -18,7 +18,7 @@ FBV_DEPENDENCIES += libpng
 
 # libpng in turn depends on other libraries
 ifeq ($(BR2_STATIC_LIBS),y)
-FBV_CONFIGURE_OPTS += "--libs=`$(PKG_CONFIG_HOST_BINARY) --libs libpng --static`"
+FBV_CONFIGURE_OPTS += "--libs=`$(PKG_CONFIG_HOST_BINARY) --libs libpng`"
 endif
 
 else