Revert "Avoid re-running kati unnecessarily."

This reverts commit 3f0eba2bdcd5ad50a03915459bdda4fc3bad75fe.

Reason for revert: Causes build flag changes to be ignored sometimes.  Better fix is in progress.

Merged-In: Ic85be1da3765656cef8da4ec03d0b1ca7d5d625e
Change-Id: I2c06770b2ff86c69a5de89962ab9bf48bedfe6fe
diff --git a/core/release_config.mk b/core/release_config.mk
index 97c8dd3..bb51980 100644
--- a/core/release_config.mk
+++ b/core/release_config.mk
@@ -120,8 +120,7 @@
         # Disable the build flag in release-config.
         _args += --guard=false
     endif
-    _flags_file:=$(OUT_DIR)/soong/release-config/release_config-$(TARGET_PRODUCT)-$(TARGET_RELEASE).mk
-    $(KATI_shell_no_rerun $(OUT_DIR)/release-config $(_args) >$(OUT_DIR)/release-config.out 2>&1 && touch -t 200001010000 $(OUT_DIR)/release-config.out $(_flags_file))
+    $(KATI_shell_no_rerun $(OUT_DIR)/release-config $(_args) >$(OUT_DIR)/release-config.out && touch -t 200001010000 $(OUT_DIR)/release-config.out)
     $(if $(filter-out 0,$(.SHELLSTATUS)),$(error release-config failed to run))
     # This will also set _all_release_configs for us.
     $(eval include $(OUT_DIR)/soong/release-config/release_config-$(TARGET_PRODUCT)-$(TARGET_RELEASE).mk)