llvm/docs/GarbageCollection.html: Prune utf8 BOM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151968 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/GarbageCollection.html b/docs/GarbageCollection.html
index 9e88864..53ea192 100644
--- a/docs/GarbageCollection.html
+++ b/docs/GarbageCollection.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
                       "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 <head>