Revert "Add a coverage suffix to avoid Ninja file regeneration."

Revert submission 3207217-emma-flip-time-saver

Reason for revert: b/361236607

Reverted changes: /q/submissionid:3207217-emma-flip-time-saver

Change-Id: I7b4dcd3f6e73e302a2c3ef7ed5c02f6345619463
diff --git a/ui/build/kati.go b/ui/build/kati.go
index 5743ff7..a0efd2c 100644
--- a/ui/build/kati.go
+++ b/ui/build/kati.go
@@ -41,7 +41,7 @@
 // arguments.
 func genKatiSuffix(ctx Context, config Config) {
 	// Construct the base suffix.
-	katiSuffix := "-" + config.TargetProduct() + config.CoverageSuffix()
+	katiSuffix := "-" + config.TargetProduct()
 
 	// Append kati arguments to the suffix.
 	if args := config.KatiArgs(); len(args) > 0 {