-Werror=unused-function

Change-Id: Iecc7d68ad18e90bf84d358af92194c230efc2671

compilerplugins/clang/oncevar.cxx

@@ -91,21 +91,12 @@ public:
     bool VisitVarDecl( const VarDecl* );
 
 private:
-    StringRef getFilename(SourceLocation loc);
-
     std::unordered_set<VarDecl const *> maVarDeclSet;
     std::unordered_set<VarDecl const *> maVarDeclToIgnoreSet;
     std::unordered_map<VarDecl const *, int> maVarUsesMap;
     std::unordered_map<VarDecl const *, SourceRange> maVarUseSourceRangeMap;
 };
 
-StringRef OnceVar::getFilename(SourceLocation loc)
-{
-    SourceLocation spellingLocation = compiler.getSourceManager().getSpellingLoc(loc);
-    StringRef name { compiler.getSourceManager().getFilename(spellingLocation) };
-    return name;
-}
-
 bool OnceVar::VisitVarDecl( const VarDecl* varDecl )
 {
     if (ignoreLocation(varDecl)) {