I wanted to be smart and answered “with Regex,” but now I have discovered that Obsidian doesn’t support Regex by default.
Maybe you try with this plugin: GitHub - Gru80/obsidian-regex-replace: Plugin for Obsidian, providing search/replace functionality which supports regular expressions and selections.
And expression should be something like this \[\[(.*?)\]\].
Hope it gives you something for further investigation … cheers, Marko 