[Bf-docboard-svn] bf-manual: [8902] branches/blender-v3.1-release/: Remove 3.1 branch, that was created with wrong name

[Thomas Dinges]

Revision: 8902
          https://developer.blender.org/rBM8902
Author:   dingto
Date:     2022-01-28 13:08:45 +0100 (Fri, 28 Jan 2022)
Log Message:
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Remove 3.1 branch, that was created with wrong name

Removed Paths:
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    branches/blender-v3.1-release/