Remove upgrade database docs

Database upgrades happens implicitly now as part of analysis. There
is no need to call this out in separate steps.

docs/codeql/codeql-cli/using-the-codeql-cli.rst

@@ -7,7 +7,7 @@ Using the CodeQL CLI
 
 See the following links to learn how to get set up and run CodeQL commands:
 
-- :doc:`About the CodeQL CLI <about-the-codeql-cli>`: Software 
+- :doc:`About the CodeQL CLI <about-the-codeql-cli>`: Software
   developers and security researchers can secure their code using the CodeQL CLI.
 
 - :doc:`Getting started with the CodeQL CLI
@@ -17,19 +17,15 @@ See the following links to learn how to get set up and run CodeQL commands:
 - :doc:`Creating CodeQL databases
   <creating-codeql-databases>`: Create relational
   representations of source code that can be queried like any other database.
-  
+
 - :doc:`Extractor options
-  <extractor-options>`: Set options for the 
+  <extractor-options>`: Set options for the
   behavior of extractors that create CodeQL databases.
 
 - :doc:`Analyzing CodeQL databases with the CodeQL CLI
   <analyzing-databases-with-the-codeql-cli>`: Analyze your code using queries
   written in a specially-designed, object-oriented query language.
 
-- :doc:`Upgrading CodeQL databases
-  <upgrading-codeql-databases>`: Upgrade your databases so
-  that they can be analyzed using the most up to date CodeQL products.
-
 - :doc:`Using custom queries with the CodeQL CLI
   <using-custom-queries-with-the-codeql-cli>`: Use custom queries to extend your
   analysis or highlight errors that are specific to a particular codebase.
@@ -42,7 +38,7 @@ See the following links to learn how to get set up and run CodeQL commands:
   your analysis.
 
 - :doc:`Testing query help files <testing-query-help-files>`:
-  Test query help files by rendering them as markdown to ensure they are valid 
+  Test query help files by rendering them as markdown to ensure they are valid
   before adding them to the CodeQL repository or using them in code scanning.
 
 - :doc:`Creating and working with CodeQL packs <creating-and-working-with-codeql-packs>`:
@@ -51,7 +47,7 @@ See the following links to learn how to get set up and run CodeQL commands:
 - :doc:`Publishing and using CodeQL packs <publishing-and-using-codeql-packs>`:
   Publish your own or use others CodeQL packs for code scanning.
 
-- :doc:`Specifying command options in a CodeQL configuration file <specifying-command-options-in-a-codeql-configuration-file>`: 
+- :doc:`Specifying command options in a CodeQL configuration file <specifying-command-options-in-a-codeql-configuration-file>`:
   You can save default or frequently used options for your commands in a per-user configuration file.
 
 .. toctree::
@@ -63,7 +59,6 @@ See the following links to learn how to get set up and run CodeQL commands:
    creating-codeql-databases
    extractor-options
    analyzing-databases-with-the-codeql-cli
-   upgrading-codeql-databases
    using-custom-queries-with-the-codeql-cli
    creating-codeql-query-suites
    testing-custom-queries