[plasma/kwin] doc: Remove coding-conventions.md

Git commit ee8ba5d4698b6fb1da8b2b7e29b7588f93c77969 by Vlad Zahorodnii.
Committed on 22/07/2026 at 07:10.
Pushed by vladz into branch 'master'.

Remove coding-conventions.md

It's kind of outdated.

D  +0    -86   doc/coding-conventions.md

https://invent.kde.org/plasma/kwin/-/commit/ee8ba5d4698b6fb1da8b2b7e29b7588f93c77969

diff --git a/doc/coding-conventions.md b/doc/coding-conventions.md
deleted file mode 100644
index 42bb4bfbd4b..00000000000
--- a/doc/coding-conventions.md
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-# Coding Conventions
-
-This document describes some of the recommended coding conventions that should be followed in KWin.
-
-For KWin, it is recommended to follow the KDE Frameworks Coding Style.
-
-
-## `auto` Keyword
-
-Optionally, you can use the `auto` keyword in the following cases. If in doubt, for example if using
-`auto` could make the code less readable, do not use `auto`. Keep in mind that code is read much more
-often than written.
-
-* When it avoids repetition of a type in the same statement.
-
-  ```
-  auto something = new MyCustomType;
-  auto keyEvent = static_cast<QKeyEvent *>(event);
-  auto myList = QStringList({ "FooThing",  "BarThing" });
-  ```
-
-* When assigning iterator types.
-
-  ```
-  auto it = myList.const_iterator();
-  ```
-
-
-## `QRect::right()` and `QRect::bottom()`
-
-For historical reasons, the `QRect::right()` and `QRect::bottom()` functions deviate from the true
-bottom-right corner of the rectangle. Note that this is not the case for the `QRectF` class.
-
-As a general rule, avoid using `QRect::right()` and `QRect::bottom()` as well methods that operate
-on them. There are exceptions, though.
-
-Exception 1: you can use `QRect::moveRight()` and `QRect::moveBottom()` to snap a `QRect` to
-another `QRect` as long as the corresponding borders match, for example
-
-```
-// Ok
-rect.moveRight(anotherRect.right());
-rect.moveBottom(anotherRect.bottom());
-rect.moveBottomRight(anotherRect.bottomRight());
-
-// Bad
-rect.moveRight(anotherRect.left() - 1); // must be rect.moveLeft(anotherRect.left() - rect.width());
-rect.moveBottom(anotherRect.top() - 1); // must be rect.moveTop(anotherRect.top() - rect.height());
-rect.moveBottomRight(anotherRect.topLeft() - QPoint(1, 1));
-```
-
-Exception 2: you can use `QRect::setRight()` and `QRect::setBottom()` to clip a `QRect` by another
-`QRect` as long as the corresponding borders match, for example
-
-```
-// Ok
-rect.setRight(anotherRect.right());
-rect.setBottom(anotherRect.bottom());
-rect.setBottomRight(anotherRect.bottomRight());
-
-// Bad
-rect.setRight(anotherRect.left());
-rect.setBottom(anotherRect.top());
-rect.setBottomRight(anotherRect.topLeft());
-```
-
-Exception 3: you can use `QRect::right()` and `QRect::bottom()` in conditional statements as long
-as the compared borders are the same, for example
-
-```
-// Ok
-if (rect.right() > anotherRect.right()) {
-    return;
-}
-if (rect.bottom() > anotherRect.bottom()) {
-    return;
-}
-
-// Bad
-if (rect.right() > anotherRect.left()) {
-    return;
-}
-if (rect.bottom() > anotherRect.top()) {
-    return;
-}
-```