Remove mocking module.

tests/utils/mock.nim

@@ -1,48 +0,0 @@
-# Sourced from https://forum.nim-lang.org/t/9255#60617
-
-import posix
-
-type Instr {.union.} = object
-  bytes: array[8, byte]
-  value: uint64
-
-proc mockImpl*(target, replacement: pointer) =
-  # YOLO who needs alignment
-  #doAssert (cast[ByteAddress](target) and ByteAddress(0x07)) == 0
-  var page = cast[pointer](cast[ByteAddress](target) and (not 0xfff))
-  doAssert mprotect(page, 4096, PROT_WRITE or PROT_EXEC) == 0
-  let rel = cast[ByteAddress](replacement) - cast[ByteAddress](target) - 5
-  var instr = Instr(
-    bytes: [
-      0xe9.byte,
-      (rel shr 0).byte,
-      (rel shr 8).byte,
-      (rel shr 16).byte,
-      (rel shr 24).byte,
-      0,
-      0,
-      0,
-    ]
-  )
-  cast[ptr uint64](target)[] = instr.value
-  doAssert mprotect(page, 4096, PROT_EXEC) == 0
-
-# Note: Requires manual cleanup
-# Usage Example:
-# proc helloWorld(): string = 
-#   "Hello, World!"
-#
-# echo helloWorld() # "Hello, World!"
-#
-# let backup = helloWorld
-# mock(helloWorld):
-#   proc mockedHellWorld(): string =
-#     "Mocked Hello, World!"
-#   mockedHellWorld
-#
-# echo helloWorld() # "Mocked Hello, World!"
-# 
-# mock(helloWorld):
-#   backup
-template mock*(target, replacement: untyped): untyped =
-  mockImpl(cast[pointer](target), cast[pointer](replacement))