SILGen: Remove some dead code

Author: slavapestov

lib/SILGen/SILGenFunction.h

@@ -438,24 +438,6 @@ class LLVM_LIBRARY_VISIBILITY SILGenFunction
       Result.box = box;
       return Result;
     }
-
-    static VarLoc getForBox(SILValue box) {
-      VarLoc Result;
-      Result.value = SILValue();
-      Result.box = box;
-      return Result;
-    }
-
-    /// Return either the value if we have one or if we only have a box, project
-    /// our a new box address and return that.
-    SILValue getValueOrBoxedValue(
-        SILGenFunction &SGF,
-        SILLocation loc = RegularLocation::getAutoGeneratedLocation()) {
-      if (value)
-        return value;
-      assert(box);
-      return SGF.B.createProjectBox(loc, box, 0);
-    }
   };
 
   /// VarLocs - Entries in this map are generated when a PatternBindingDecl is