Remove spurious unsigned operations from system/threads.nim.

These operations were included before the unsigned module was
incorporated directly into system.nim and subsequently caused
compilation errors with --gc:go due to duplicate definitions.

1 files changed, 0 insertions, 3 deletions

diff --git a/lib/system/mmdisp.nim b/lib/system/mmdisp.nim
index ecf25ceee..1c13f3ff8 100644
--- a/lib/system/mmdisp.nim
+++ b/lib/system/mmdisp.nim
@@ -199,9 +199,6 @@ elif defined(gogc):
   else:
     const goLib = "libgo.so"
 
-  proc `div`[T: SomeUnsignedInt](x, y: T): T {.magic: "DivU", noSideEffect.}
-  proc `-`[T: SomeUnsignedInt](x, y: T): T {.magic: "SubU", noSideEffect.}
-
   proc roundup(x, v: int): int {.inline.} =
     result = (x + (v-1)) and not (v-1)