Remove NUMBER_OF_COLUMNS and MAX_CELLS_IN_EXTENDED_MATRIX configuration. (#16073)

**What type of PR is this?**
Other

**What does this PR do? Why is it needed?**
This pull request removes `NUMBER_OF_COLUMNS` and
`MAX_CELLS_IN_EXTENDED_MATRIX` configuration.

**Other notes for review**
Please read commit by commit, with commit messages.

**Acknowledgements**
- [x] I have read
[CONTRIBUTING.md](https://github.com/prysmaticlabs/prysm/blob/develop/CONTRIBUTING.md).
- [x] I have included a uniquely named [changelog fragment
file](https://github.com/prysmaticlabs/prysm/blob/develop/CONTRIBUTING.md#maintaining-changelogmd).
- [x] I have added a description to this PR with sufficient context for
reviewers to understand this PR.

beacon-chain/blockchain/process_block_test.go

@@ -2495,7 +2495,8 @@ func TestMissingBlobIndices(t *testing.T) {
 }
 
 func TestMissingDataColumnIndices(t *testing.T) {
-	countPlusOne := params.BeaconConfig().NumberOfColumns + 1
+	const countPlusOne = fieldparams.NumberOfColumns + 1
+
 	tooManyColumns := make(map[uint64]bool, countPlusOne)
 	for i := range countPlusOne {
 		tooManyColumns[uint64(i)] = true