i#2190: Fix a typo of identical conditions

[Artem-OSSRevival]

Among the conditions in return statement were identical ones, which is a simple typo. The solution is a removal of unnecessary repetitions.

Before:

return (opc_is_stringop_loop(opc) ||
        opc == OP_ins || opc == OP_outs || opc == OP_movs ||
        opc == OP_stos || opc == OP_lods || opc == OP_cmps ||
        opc == OP_cmps || opc == OP_scas || opc == OP_scas);

After:

return (opc_is_stringop_loop(opc) ||
        opc == OP_ins || opc == OP_outs || opc == OP_movs ||
        opc == OP_stos || opc == OP_lods || opc == OP_cmps ||
        opc == OP_scas);

Fixes #2190

[derekbruening]

style nit: see https://dynamorio.org/page_code_reviews.html#sec_commit_messages about the title which should have a colon after the issue number. I will edit it.

[Artem-OSSRevival]

style nit: see https://dynamorio.org/page_code_reviews.html#sec_commit_messages about the title which should have a colon after the issue number. I will edit it.

Thanks for the correction, again :) maybe the next time it will turn out even better :)