[Toybox] towards xzcat cleanup

[Rob Landley]

On 04/12/2013 09:19:45 AM, Isaac Dunham wrote:
> xzcat: more cleanup and some shrinking.
> 
> -drop __always_inline (c. 1.5k of binary size),
> -remove the xz_dec_bcj_end and memzero macros
> (memeq is left because of negative returns),
> -disable XZ_DEC_SINGLE and XZ_DEC_PREALLOC, since we aren't using  
> them.
> (160 bytes)
> -Merge xz_dec_lzma2_end into xz_dec_end
> -Move xz_crc32 to where it's defined.
> (That does not seem to be duplicated elsewhere in toybox.)

Happily applied, followed up by a commit converting tabs to spaces.

Rob