[Preprocessor] Remove PPMutationListener.
It's not used anymore.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178106 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index bda72be..53c45dc 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -54,8 +54,6 @@
//===----------------------------------------------------------------------===//
ExternalPreprocessorSource::~ExternalPreprocessorSource() { }
-PPMutationListener::~PPMutationListener() { }
-
Preprocessor::Preprocessor(IntrusiveRefCntPtr<PreprocessorOptions> PPOpts,
DiagnosticsEngine &diags, LangOptions &opts,
const TargetInfo *target, SourceManager &SM,
@@ -68,7 +66,7 @@
Identifiers(opts, IILookup), IncrementalProcessing(IncrProcessing),
CodeComplete(0), CodeCompletionFile(0), CodeCompletionOffset(0),
CodeCompletionReached(0), SkipMainFilePreamble(0, true), CurPPLexer(0),
- CurDirLookup(0), CurLexerKind(CLK_Lexer), Callbacks(0), Listener(0),
+ CurDirLookup(0), CurLexerKind(CLK_Lexer), Callbacks(0),
MacroArgCache(0), Record(0), MIChainHead(0), MICache(0) {
OwnsHeaderSearch = OwnsHeaders;