Revert some parts of fuzzing rev 64375106e759, some KeyboardInterrupts should not be caught with Exceptions.
Revert some parts of fuzzing rev 64375106e759, some KeyboardInterrupts should not be caught with Exceptions.

nth10sd/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz,MozillaSecurity/funfuzz