Removed broken links from History.

src/docs/asciidoc/sdk.adoc

@@ -145,5 +145,10 @@ See link:https://github.com/jMonkeyEngine/jmonkeyengine/labels/roadmap[this page
 
 
 == A Little Bit of History
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+Removed links due to not being able to find them...
 
 The jMonkeyEngine SDK first set root during a link:http://www.jmonkeyengine.com/forum/index.php?topic=13070.0[discussion with Normen Hansen]. Although similar projects existed previously, this was the first serious attempt that had the original core team's blessing. For some time, the project was referred to merely as the "link:https://blogs.oracle.com/geertjan/youtube-movie-of-jmonkeyengine-on-netbeans-platform[Game Development Environment], or "GDE" for short. During alpha, we referred to it as link:http://www.jmonkeyengine.com/forum/index.php?topic=13510.0[jMonkeyPlatform], and for beta it was eventually renamed to the jMonkeyEngine SDK.
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+The jMonkeyEngine SDK first set root during a discussion with Normen Hansen. Although similar projects existed previously, this was the first serious attempt that had the original core team's blessing. For some time, the project was referred to merely as the Game Development Environment, or "GDE" for short. During alpha, we referred to it as jMonkeyPlatform, and for beta it was eventually renamed to the jMonkeyEngine SDK.