Revert "Reland "Enable R8 full mode by default for apps""

This reverts commit a9f5c57b90609c3308c02048a45894fe15191416.

Reason for revert: DroidMonitor-triggered revert due to breakage https://android-build.corp.google.com/test_investigate/?invocationId=I59400010184068138&testResultId=TR41428835561759069&tab=trace, bug b/294287299

Bug:294287299
Change-Id: Id7bbe3b1a4cdc999c6a4cb9002b60c882b34f11e
diff --git a/java/dex.go b/java/dex.go
index 7dd14bd..7e7da00 100644
--- a/java/dex.go
+++ b/java/dex.go
@@ -45,8 +45,8 @@
 		// Whether to continue building even if warnings are emitted.  Defaults to true.
 		Ignore_warnings *bool
 
-		// If true, runs R8 in Proguard compatibility mode, otherwise runs R8 in full mode.
-		// Defaults to false for apps, true for libraries and tests.
+		// If true, runs R8 in Proguard compatibility mode (default).
+		// Otherwise, runs R8 in full mode.
 		Proguard_compatibility *bool
 
 		// If true, optimize for size by removing unused code.  Defaults to true for apps,