Remove a stale comment, it no longer applied after my cleanups.
Remove a stale comment, it no longer applied after my cleanups.

Also fix several misspellings in my comments. I cannot spell, and cannot
even be trusted to ask my editor how to spell apparently.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@130662 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang