Projects: remove missing item

The item "Go Implementations“ didn't exist.

Change-Id: I804d9a78ee9ba509b1505de532c1b1c907038971
GitHub-Last-Rev: eec8c00cf0bac4307825c9a7494c924bb9fc4903
GitHub-Pull-Request: golang/wiki#19
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/591215
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
diff --git a/Projects.md b/Projects.md
index d20bd64..776d2a0 100644
--- a/Projects.md
+++ b/Projects.md
@@ -48,7 +48,6 @@
 * [File Systems](#file-systems)
 * [Games](#games)
 * [GIS](#gis)
-* [Go Implementations](#go-implementations)
 * [Graphics and Audio](#graphics-and-audio)
 * [GUIs and Widget Toolkits](#guis-and-widget-toolkits)
 * [Hardware](#hardware)