[MINOR][BUILD] Remove *.crc from .gitignore

## What changes were proposed in this pull request?

Remove *.crc from .gitignore as there are actual .crc files in the test source dirs and IJ warns about it

## How was this patch tested?

N/A

Closes apache#23020 from srowen/gitignore.

Authored-by: Sean Owen <[email protected]>
Signed-off-by: Sean Owen <[email protected]>

Author: srowen

.gitignore

@@ -77,7 +77,6 @@ target/
 unit-tests.log
 work/
 docs/.jekyll-metadata
-*.crc
 
 # For Hive
 TempStatsStore/