Don't explicitly remap the personality function.

LLVM does this already.

(cherry picked from commit b815bb1)

Author: maleadt

src/llvm-remove-addrspaces.cpp

@@ -408,9 +408,6 @@ bool removeAddrspaces(Module &M, AddrspaceRemapFunction ASRemapper)
         }
         NF->setAttributes(Attrs);
 
-        if (F->hasPersonalityFn())
-            NF->setPersonalityFn(MapValue(F->getPersonalityFn(), VMap));
-
         copyComdat(NF, F);
 
         RemoveNoopAddrSpaceCasts(NF);