Removed outdated info from physics table.

src/docs/asciidoc/jme3/jme3_source_structure.adoc

@@ -60,9 +60,6 @@ a| Game Physics Engine, based on the jBullet framework. Desktop only. +++<strike
 <a| pass:[*] src/bullet
 a| Game Physics Engine, based on the native Bullet framework. Needs jme3-bullet-native or jme3-bullet-native-android (beta) +++<strike>jBullet</strike>+++
 
-a| src/bullet-common
-a| Classes common between native and java Bullet implementations.
-
 a| src/bullet-native
 a| Native Bullet implementation pass:[C++] classes. +++<strike>jBullet</strike>+++