Prevent the bot from stopping without giving any reason.

Fixes 40Cakes#116

If the stats system cannot initialise for some reason, it catches _all_ errors, suppresses them and then just exits the process.

Most of the time that probably happened due to messed up `custom_hooks` or `custom_catch_filters` files (containing syntax errors or other problems that manifest on import.)

I have removed that catch-all handler entirely since Python's default behaviour should already be to just exit whenever there is an exception -- but at least now, there will be an error message.

I have searched the code base for similar snippets and found another one in `write_symbol()`, which I have also updated.

modules/memory.py

@@ -1,4 +1,3 @@
-import sys
 import struct
 from enum import IntEnum
 
@@ -67,8 +66,6 @@ def write_symbol(name: str, data: bytes, offset: int = 0x0) -> bool:
         return True
     except SystemExit:
         raise
-    except:
-        sys.exit(1)
 
 
 def parse_tasks(pretty_names: bool = False) -> list:

modules/stats.py

@@ -1,7 +1,6 @@
 import copy
 import json
 import math
-import sys
 import time
 import importlib
 from threading import Thread
@@ -60,8 +59,6 @@ def __init__(self):
             self.shiny_log = json.loads(f_shiny_log) if f_shiny_log else {"shiny_log": []}
         except SystemExit:
             raise
-        except:
-            sys.exit(1)
 
     def append_encounter_timestamps(self) -> None:
         self.encounter_timestamps.append(time.time())