Remove old code.

Author: maleadt

src/core/context.jl

@@ -107,10 +107,5 @@ end
 
 function _install_handlers()
     handler = @cfunction(handle_error, Cvoid, (Cstring,))
-
-    # NOTE: LLVM doesn't support re-installing the error handler, which happens when we
-    #       `reload("LLVM")`, so reset it instead. This isn't correct, as the installed
-    #       handler might not have been ours. Ideally we'd have module finalizers...
-    API.LLVMResetFatalErrorHandler()
     API.LLVMInstallFatalErrorHandler(handler)
 end