Stop (re)setting empty and space
These are set by the core build system, and are becoming readonly.
Bug: 76424357
Test: lunch aosp_marlin-userdebug; m nothing
Test: build-aosp_marlin.ninja is the same
Change-Id: Ib41a535fa8923f9110a16e5abfc0369f8c4e290c
diff --git a/common/utils.mk b/common/utils.mk
index c823d21..4a0cc2a 100644
--- a/common/utils.mk
+++ b/common/utils.mk
@@ -1,6 +1,4 @@
# vars for use by utils
-empty :=
-space := $(empty) $(empty)
colon := $(empty):$(empty)
underscore := $(empty)_$(empty)
