Remove sepolicy_split from Soong.

No longer needed.

Bug: 62019611
Test: manual
Change-Id: I14a96d2f9dab24e446bccd79d2f0f13763f7a2e9
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 8f5a054..5136582 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -119,7 +119,6 @@
 
 $(call add_json_bool, Treble,                            $(filter true,$(PRODUCT_FULL_TREBLE)))
 $(call add_json_bool, Treble_linker_namespaces,          $(filter true,$(PRODUCT_TREBLE_LINKER_NAMESPACES)))
-$(call add_json_bool, Sepolicy_split,                    $(filter true,$(PRODUCT_SEPOLICY_SPLIT)))
 $(call add_json_bool, Enforce_vintf_manifest,            $(filter true,$(PRODUCT_ENFORCE_VINTF_MANIFEST)))
 
 $(call add_json_bool, Uml,                               $(filter true,$(TARGET_USER_MODE_LINUX)))