external/firebird: --with-fbsample[-db] is apparently about specifying dirs

...not about specifying whether to build the examples at all (which would be
useful for us, but for which there seems to be no switch).

Change-Id: I511b2228a6e5e2df7e0ecb83135ad27945bb04b6
Reviewed-on: https://gerrit.libreoffice.org/28221Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

external/firebird/ExternalProject_firebird.mk

@@ -78,7 +78,6 @@ $(call gb_ExternalProject_get_state_target,firebird,build):
 		&& export $(gb_Helper_LIBRARY_PATH_VAR)=$${$(gb_Helper_LIBRARY_PATH_VAR):+$$$(gb_Helper_LIBRARY_PATH_VAR):}":$(call gb_UnpackedTarball_get_dir,icu)/source/lib" \
 		&& MAKE=$(MAKE) ./configure \
 			--without-editline \
-			--without-fbsample --without-fbsample-db \
 			--with-wire-compress=no \
 			$(if $(filter-out MSC,$(COM)),$(if $(ENABLE_DEBUG),--enable-debug)) \
 			$(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \