Revert "Set ObjectFile's assignment operator to also be deleted like its copy constructor" (#92973)

Reverts #92942

Author: fsfod

llvm/include/llvm/Object/ObjectFile.h

@@ -302,7 +302,6 @@ class ObjectFile : public SymbolicFile {
 public:
   ObjectFile() = delete;
   ObjectFile(const ObjectFile &other) = delete;
-  ObjectFile &opeartor = (const ObjectFile &other) = delete;
 
   uint64_t getCommonSymbolSize(DataRefImpl Symb) const {
     Expected<uint32_t> SymbolFlagsOrErr = getSymbolFlags(Symb);