Revert "Reapply "rustc-1.82.0 Build 12803484""

Revert submission 3440170-rustc-1.82-hack-update

Reason for revert: <Droidmonitor created revert due to b/388635531.Will be verified through ABTD for standard investigation.>

Reverted changes: /q/submissionid:3440170-rustc-1.82-hack-update

Change-Id: I4bc26f09ceac09b2e5c87d52435ed59de7341665
diff --git a/rust/config/global.go b/rust/config/global.go
index 8e06c8d..66ffc0b 100644
--- a/rust/config/global.go
+++ b/rust/config/global.go
@@ -25,7 +25,7 @@
 var (
 	pctx = android.NewPackageContext("android/soong/rust/config")
 
-	RustDefaultVersion = "1.82.0"
+	RustDefaultVersion = "1.81.0"
 	RustDefaultBase    = "prebuilts/rust/"
 	DefaultEdition     = "2021"
 	Stdlibs            = []string{