Revert "rustc-1.82.0 Build 12803484"

Revert submission 3413150-rust-update-prebuilts-1.82.0

Reason for revert: b/384565876

Reverted changes: /q/submissionid:3413150-rust-update-prebuilts-1.82.0

Bug: 384556043
BUg: 384547491
Change-Id: Id625633334ffb2e11096b00ab5552add4797d89b
diff --git a/rust/config/global.go b/rust/config/global.go
index b2db30d..7b79fca 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{