Revert "Created _Sidebar (markdown)"

This reverts commit 689be40cf7339356fd4b3d79e4b0bb8e6988fb2a.
diff --git a/_Sidebar.md b/_Sidebar.md
deleted file mode 100644
index ad57a87..0000000
--- a/_Sidebar.md
+++ /dev/null
@@ -1 +0,0 @@
-# [https://github.com/golang/go.wiki.git](https://github.com/golang/go.wiki.git)
\ No newline at end of file