disable the tiledrendering tests in the headless build mode

This was pointed out by the Random Config tb.

Change-Id: I8a4f70d6661178f2671e4e3588f5873c64885c07
Reviewed-on: https://gerrit.libreoffice.org/37175Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

sc/Module_sc.mk

@@ -44,11 +44,13 @@ $(eval $(call gb_Module_add_check_targets,sc,\
 	CppunitTest_sc_core \
 ))
 
+ifneq ($(ENABLE_HEADLESS),TRUE)
 ifeq ($(OS),LINUX)
 $(eval $(call gb_Module_add_check_targets,sc,\
     CppunitTest_sc_tiledrendering \
 ))
 endif
+endif
 
 $(eval $(call gb_Module_add_slowcheck_targets,sc, \
 	CppunitTest_sc_condformats \

sd/Module_sd.mk

@@ -39,12 +39,14 @@ $(eval $(call gb_Module_add_check_targets,sd,\
 ))
 endif
 
+ifneq ($(ENABLE_HEADLESS),TRUE)
 ifeq ($(OS),LINUX)
 $(eval $(call gb_Module_add_check_targets,sd,\
     CppunitTest_sd_svg_export_tests \
     CppunitTest_sd_tiledrendering \
 ))
 endif
+endif
 
 # screenshots
 $(eval $(call gb_Module_add_screenshot_targets,sd, \

sw/Module_sw.mk

@@ -79,11 +79,13 @@ $(eval $(call gb_Module_add_slowcheck_targets,sw,\
     CppunitTest_sw_globalfilter \
 ))
 
+ifneq ($(ENABLE_HEADLESS),TRUE)
 ifeq ($(OS),LINUX)
 $(eval $(call gb_Module_add_slowcheck_targets,sw,\
     CppunitTest_sw_tiledrendering \
 ))
 endif
+endif
 
 ifneq ($(DISABLE_CVE_TESTS),TRUE)
 $(eval $(call gb_Module_add_slowcheck_targets,sw,\