Revert "Move /default.prop to /system/etc/prop.default"

This reverts commit fad00e43186fb699c924e436f4cc61a88b055ed2.

init fails to read default.prop under recovery:
init: Couldn't load properties from /default.prop: Too many symbolic links encountered

Bug: 62525809
Change-Id: I133e9025693e3e01278ec73c8d08860fc89d314b
diff --git a/core/Makefile b/core/Makefile
index 9bb0495..961f35d 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -78,13 +78,8 @@
 endif
 
 # -----------------------------------------------------------------
-# prop.default
-ifdef property_overrides_split_enabled
-INSTALLED_DEFAULT_PROP_TARGET := $(TARGET_OUT)/etc/prop.default
-else
-# legacy path
+# default.prop
 INSTALLED_DEFAULT_PROP_TARGET := $(TARGET_ROOT_OUT)/default.prop
-endif
 ALL_DEFAULT_INSTALLED_MODULES += $(INSTALLED_DEFAULT_PROP_TARGET)
 FINAL_DEFAULT_PROPERTIES := \
     $(call collapse-pairs, $(ADDITIONAL_DEFAULT_PROPERTIES))
@@ -100,7 +95,6 @@
 $(INSTALLED_DEFAULT_PROP_TARGET): $(intermediate_system_build_prop)
 	@echo Target buildinfo: $@
 	@mkdir -p $(dir $@)
-	@rm -f $@
 	$(hide) echo "#" > $@; \
 	        echo "# ADDITIONAL_DEFAULT_PROPERTIES" >> $@; \
 	        echo "#" >> $@;
@@ -113,9 +107,6 @@
 	$(hide) echo ro.bootimage.build.date.utc=`$(DATE_FROM_FILE) +%s`>>$@
 	$(hide) echo ro.bootimage.build.fingerprint="$(BUILD_FINGERPRINT_FROM_FILE)">>$@
 	$(hide) build/tools/post_process_props.py $@
-ifdef property_overrides_split_enabled
-	$(hide) ln -sf system/etc/prop.default $(TARGET_ROOT_OUT)/default.prop
-endif
 
 # -----------------------------------------------------------------
 # vendor default.prop
@@ -1193,13 +1184,12 @@
     $(hide) cp -f $(recovery_wipe) $(TARGET_RECOVERY_ROOT_OUT)/etc/recovery.wipe)
   $(hide) cp $(RECOVERY_INSTALL_OTA_KEYS) $(TARGET_RECOVERY_ROOT_OUT)/res/keys
   $(hide) cat $(INSTALLED_DEFAULT_PROP_TARGET) \
-          > $(TARGET_RECOVERY_ROOT_OUT)/prop.default
+          > $(TARGET_RECOVERY_ROOT_OUT)/default.prop
   $(if $(INSTALLED_VENDOR_DEFAULT_PROP_TARGET), \
     $(hide) cat $(INSTALLED_VENDOR_DEFAULT_PROP_TARGET) \
-            >> $(TARGET_RECOVERY_ROOT_OUT)/prop.default)
+            >> $(TARGET_RECOVERY_ROOT_OUT)/default.prop)
   $(hide) cat $(recovery_build_props) \
-          >> $(TARGET_RECOVERY_ROOT_OUT)/prop.default
-  $(hide) ln -sf prop.default $(TARGET_RECOVERY_ROOT_OUT)/default.prop
+          >> $(TARGET_RECOVERY_ROOT_OUT)/default.prop
   $(BOARD_RECOVERY_IMAGE_PREPARE)
   $(if $(filter true,$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)), \
     $(hide) mkdir -p $(TARGET_RECOVERY_ROOT_OUT)/system_root; \