fix: Remove a !important CSS block that is no longer needed

This was added to fix #2361:
Missing text indentation for tasks with lines long enough to wrap,
in queries viewed in Live Preview mode [Obsidian issue]

Investigation has shown that the underlying issue has been fixed in
Obsidian, so the workaround is no longer needed.

Author: claremacrae

src/Renderer/Renderer.scss

@@ -3,11 +3,6 @@
 
 }
 
-/* Fix indentation of wrapped task lines in Tasks search results, when in Live Preview. */
-ul.contains-task-list .task-list-item-checkbox {
-    margin-inline-start: calc(var(--checkbox-size) * -1.5) !important;
-}
-
 .plugin-tasks-query-explanation{
     /* Prevent long explanation lines wrapping, so they are more readable,
        especially on small screens.