Re: [PATCH 3/4] t/perf: avoid testing bitmaps without lookup table

> In a previous commit, the setting which controls whether or not the
> pack- and MIDX-bitmap machinery writes a lookup table,
> 'pack.writeBitmapLookupTable' was enabled by default.
>
> As a result, we can clean up many of our bitmap-related performance
> tests. Many of the relevant performance tests look something like:
>
>     test_it () {
>       test_expect_success 'setup pack.writeBitmapLookupTable' '
>         git config pack.writeBitmapLookupTable '"$1"'
>       '
>
>       # ...
>     }
>
>     test_it true
>     test_it false
>
> , where the two invocations of 'test_it' run the tests with and without
> bitmap lookup tables enabled.
>
> But now that lookup tables are enabled by default and have proven to be
> a performance win, let's avoid benchmarking what is now an uncommon and
> non-default scenario.
>
> Signed-off-by: Taylor Blau <me@ttaylorr.com>
> ---