Commit: MSP430: crt0: Remove watchdog disabling code

[DJ Delorie]

> The section you're removing the watchdog disabling code from is
> contained in section ".crt_0000start".
> Therefore the section ".crt_0001disable_watchdog" in the code above

I left plenty of room in there for numbers; the next pre-defined
section after 0000start is 0100init_bss, so any number from 0001 to
0099 would do.  Choosing 0042 is arbitrary, and leaves room both
before and after it for even more additions.