Change in flashrom[master]: libflashrom: remove flashrom_supported_programmers

[Angel Pons (Code Review)]

Attention is currently required from: Nico Huber, Thomas Heijligen.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/55350 )

Change subject: libflashrom: remove flashrom_supported_programmers
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Patch Set 1:

(2 comments)

Commit Message:

https://review.coreboot.org/c/flashrom/+/55350/comment/61ca6d44_1b2111a5 
PS1, Line 9: const char **flashrom_supported_programmers(void) returns an array of
           : strings without returning the array size or making a NULL
           : termination.
CB:55269 happens to NULL-terminate the returned array.

https://review.coreboot.org/c/flashrom/+/55350/comment/d74c4ce9_cebd2d09 
PS1, Line 11: iterate
nit: iterating