Doc: Describe function for sorting lines alphabetically

Remove the information about the external sort tool, which will
now be removed from Qt Creator that we have a sorting feature.

Change-Id: I508885954a2fc7f9cbd136681a69c690c710235f
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

doc/src/howto/creator-external-tools.qdoc

@@ -37,9 +37,8 @@
 
     \title Using External Tools
 
-    You can use external tools directly from \QC. Qt Linguist,
-    QML preview tools, the
-    default text editor for your system, and the \c sort tool are preconfigured
+    You can use external tools directly from \QC. Qt Linguist, QML preview
+    tools, and the default text editor for your system are preconfigured
     for use. You can change their default configurations and configure new
     tools.
 
@@ -93,16 +92,6 @@
     \QC looks for the editor path in the PATH environment variable
     of your operating system.
 
-    \section1 Sorting Text Alphabetically
-
-    To sort selected text alphabetically, select \uicontrol {Tools > External > Text
-    > Sort Selection}. The \c sort tool takes the selected text as input and
-    returns it in alphabetic order. By default, the output replaces the
-    original selection in the code editor.
-
-    To change the default configuration, select \uicontrol {Tools > External >
-    Configure}.
-
     \section1 Configuring External Tools
 
     You can change the configuration of preconfigured tools and configure

doc/src/howto/creator-tips.qdoc

@@ -257,4 +257,10 @@
     history, press \key {Ctrl+Shift+V} until the clip appears.
     The number of clips in the history is fixed to 10.
 
+    \section1 Sorting Lines Alphabetically
+
+    To sort selected lines alphabetically, select \uicontrol Edit >
+    \uicontrol Advanced > \uicontrol {Sort Selected Lines} or press
+    \key {Alt+Shift+S} (or \key Ctrl+Shift+S on \macos).
+
 */