darwin: fix ios compiler warning
darwin: fix ios compiler warning

uv__fsevents_loop_delete() returns void. Remove the 'return 0'
statement.

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso