m68k: mac: Remove misleading comment

This code path was tested on a Quadra 950 a long time ago and the
comment isn't needed.
Signed-off-by: NFinn Thain <fthain@telegraphics.com.au>
Cc: Joshua Thompson <funaho@jurai.org>
Link: https://lore.kernel.org/r/10dff3e7c17d363a4b239aae7b3ebab32bef3547.1589949122.git.fthain@telegraphics.com.auSigned-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/mac/iop.c

@@ -299,7 +299,6 @@ void __init iop_init(void)
 
 /*
  * Register the interrupt handler for the IOPs.
- * TODO: might be wrong for non-OSS machines. Anyone?
  */
 
 void __init iop_register_interrupts(void)