Remove leftovers of unsupported urlAlias configuration settings

Only GWT UI supported urlAlias configurations and in 3.0 GWT UI was
removed.

Bug: Issue 8054
Change-Id: I70543d484f047922b31dfa804f354eaa0fa9865f

Documentation/config-gerrit.txt

@@ -4692,47 +4692,6 @@ account deactivations.
 link:#schedule-configuration-examples[Schedule examples] can be found
 in the link:#schedule-configuration[Schedule Configuration] section.
 
-[[urlAlias]]
-=== Section urlAlias
-
-URL aliases define regular expressions for URL tokens that are mapped
-to target URL tokens.
-
-Each URL alias must be specified in its own subsection. The subsection
-name should be a descriptive name. It must be unique, but is not
-interpreted in any way.
-
-The URL aliases are applied in no particular order. The first matching
-URL alias is used and further matches are ignored.
-
-URL aliases can be used to map plugin screens into the Gerrit URL
-namespace, or to replace Gerrit screens by plugin screens.
-
-Example:
-
-----
-[urlAlias "MyPluginScreen"]
-  match = /myscreen/(.*)
-  token = /x/myplugin/myscreen/$1
-[urlAlias "MyChangeScreen"]
-  match = /c/(.*)
-  token = /x/myplugin/c/$1
-----
-
-[[urlAlias.match]]urlAlias.match::
-+
-A regular expression for a URL token.
-+
-The matched URL token is replaced by `urlAlias.token`.
-
-[[urlAlias.token]]urlAlias.token::
-+
-The target URL token.
-+
-It can contain placeholders for the groups matched by the
-`urlAlias.match` regular expression: `$1` for the first matched group,
-`$2` for the second matched group, etc.
-
 [[submodule]]
 === Section submodule
 

Documentation/rest-api-accounts.txt

@@ -2764,9 +2764,6 @@ link:rest-api-config.html#top-menu-item-info[TopMenuItemInfo] entities.
 |`change_table`                           ||
 The columns to display in the change table (PolyGerrit only). The default is
 empty, which will default columns as determined by the frontend.
-|`url_aliases`                  |optional|
-A map of URL path pairs, where the first URL path is an alias for the
-second URL path.
 |`email_strategy`               ||
 The type of email strategy to use. On `ENABLED`, the user will receive emails
 from Gerrit. On `CC_ON_OWN_COMMENTS` the user will also receive emails for
@@ -2836,9 +2833,6 @@ link:rest-api-config.html#top-menu-item-info[TopMenuItemInfo] entities.
 |`change_table`                           ||
 The columns to display in the change table (PolyGerrit only). The default is
 empty, which will default columns as determined by the frontend.
-|`url_aliases`                  |optional|
-A map of URL path pairs, where the first URL path is an alias for the
-second URL path.
 |`email_strategy`               |optional|
 The type of email strategy to use. On `ENABLED`, the user will receive emails
 from Gerrit. On `CC_ON_OWN_COMMENTS` the user will also receive emails for

Documentation/rest-api-config.txt

@@ -1965,11 +1965,6 @@ entity. Not set if SSHD is disabled.
 Information about the configuration from the
 link:config-gerrit.html#suggest[suggest] section as link:#suggest-info[
 SuggestInfo] entity.
-|`url_aliases`             |optional|
-A map of URL aliases, where a regular expression for an URL token is
-mapped to a target URL token. The target URL token can contain
-placeholders for the groups matched by the regular expression: `$1` for
-the first matched group, `$2` for the second matched group, etc.
 |`user`                    ||
 Information about the configuration from the
 link:config-gerrit.html#user[user] section as link:#user-config-info[