[ENSCORESW-1718]. Make method circular slice compliant. Moreover, the check is redundant in the context of the fetch_by_location calling method, since it already performs the same check.
[ENSCORESW-1718]. Make method circular slice compliant. Moreover,
the check is redundant in the context of the fetch_by_location calling
method, since it already performs the same check.

muffato/ensembl,Ensembl/ensembl,danstaines/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,muffato/ensembl,danstaines/ensembl,james-monkeyshines/ensembl,muffato/ensembl,danstaines/ensembl,muffato/ensembl,Ensembl/ensembl,Ensembl/ensembl