Driver: Remove some unused arguments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108345 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
index 9b6264a..9fae67d 100644
--- a/lib/Driver/ToolChain.cpp
+++ b/lib/Driver/ToolChain.cpp
@@ -26,14 +26,11 @@
  return Host.getDriver();
 }
 
-std::string ToolChain::GetFilePath(const Compilation &C,
-                                   const char *Name) const {
+std::string ToolChain::GetFilePath(const char *Name) const {
   return Host.getDriver().GetFilePath(Name, *this);
 
 }
 
-std::string ToolChain::GetProgramPath(const Compilation &C,
-                                      const char *Name,
-                                      bool WantFile) const {
+std::string ToolChain::GetProgramPath(const char *Name, bool WantFile) const {
   return Host.getDriver().GetProgramPath(Name, *this, WantFile);
 }