Removed reference to Dragon Bones

docs/en/manuals/spine.md

@@ -1,6 +1,6 @@
 ---
 title: Spine bone animation in Defold
-brief: This manual explains how to bring Spine animations from _Spine_ or _Dragon Bone_ into Defold.
+brief: This manual explains how to bring Spine animations from _Spine_ into Defold.
 ---
 
 [This manual has moved](/extension-spine)

docs/en/tutorials/runner.md

@@ -242,7 +242,7 @@ We also need to import the Spine animation data and set up a *Spine Scene* for i
 ![Hero spinescene](images/runner/2/hero_spinescene.png)
 
 ::: sidenote
-The file *hero.spinejson* has been exported in Spine JSON format. You will need the Spine or Dragon Bones animation software to be able to create such files. If you want to use other animation software you can export your animations as sprite-sheets and use them as flip-book animations either from *Tile Source* or *Atlas* resources. See the manual on [Animation](/manuals/animation) for more information.
+The file *hero.spinejson* has been exported in Spine JSON format. You will need the Spine animation software to be able to create such files. If you want to use other animation software you can export your animations as sprite-sheets and use them as flip-book animations either from *Tile Source* or *Atlas* resources. See the manual on [Animation](/manuals/animation) for more information.
 :::
 
 ### Building the game object

docs/zh/manuals/spine.md

@@ -1,6 +1,6 @@
 ---
 title: Defold 中的 Spine 骨骼动画
-brief: 本教程介绍了如何通过 _Spine_ 或者 _Dragon Bone_ 把骨骼动画带入 Defold.
+brief: 本教程介绍了如何通过 _Spine_ 把骨骼动画带入 Defold.
 ---
 
 [该教程已被移至这里](/extension-spine)