Linearscan is no longer experimental.

llvm-svn: 15067
diff --git a/llvm/docs/CommandGuide/llc.pod b/llvm/docs/CommandGuide/llc.pod
index 71cbf1c..1f202aa 100644
--- a/llvm/docs/CommandGuide/llc.pod
+++ b/llvm/docs/CommandGuide/llc.pod
@@ -139,7 +139,7 @@
 
 =item I<linearscan>
 
-Linear scan global register allocator (experimental)
+Linear scan global register allocator
 
 =back