Delete 2014-07-10-post-right-sidebar.md
Delete 2014-07-10-post-right-sidebar.md

Former-commit-id: f6947f2efee2e22595902ca84a09fa2519ebcfa5 [formerly f5a7736a5d7e8f97557348547e505c1f9405def0]
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LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io