[fuzz] Remove condition that referred to non-existing variable `targe…

…t_ansfile`

bin/fuzz.py

@@ -55,7 +55,7 @@ def _run(self, bar):
         localbar = bar.start(f'{self.i}: generate')
         result = self.generator.run(localbar, cwd, name, self.seed)
         if result.ok is not True:
-            return False # No need to call bar.done() in this case, because the Generator calls bar.error()
+            return False  # No need to call bar.done() in this case, because the Generator calls bar.error()
         localbar.done()
 
         testcase = run.Testcase(self.fuzz.problem, infile, short_path=Path(dir) / (name + '.in'))
@@ -86,9 +86,8 @@ def _run(self, bar):
                     return False
                 localbar.done()
             else:
-                if not target_ansfile.is_file():
-                    bar.error(f'{self.i}: {ansfile.name} does not exist and was not generated.')
-                    return False
+                bar.error(f'{self.i}: {ansfile.name} does not exist and was not generated.')
+                return False
         else:
             if not testcase.ans_path.is_file():
                 testcase.ans_path.write_text('')