Update: Remove shebang workaround in spaced-line-comment (fixes #1433)

Credit to @ilovejary for the original PR (#1435) (https://github.com/ilovejary/eslint/commit/27fc2f617b2ed6b29dba0cb7c8612ec0dd8be8c0).
Merge pull request #1481 from michaelficarra/patch-7

Update: Remove shebang workaround in spaced-line-comment (fixes #1433)