$ mkdir /tmp/test && cd /tmp/test
$ composer require mediawiki/mediawiki-codesniffer
$ cat <<EOF > test.php
<?php

use Foo;
EOF
$ cat <<EOF > .phpcs.xml
<?xml version="1.0"?>
<ruleset>
    <rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki/Sniffs/Classes/UnusedUseStatementSniff.php" />
</ruleset>
EOF
$ vendor/bin/phpcbf test.php

<?php

<?php

;

diff --git a/MediaWiki/Sniffs/Classes/UnusedUseStatementSniff.php b/MediaWiki/Sniffs/Classes/UnusedUseStatementSniff.php
index 2cb7227..4dc17da 100644
--- a/MediaWiki/Sniffs/Classes/UnusedUseStatementSniff.php
+++ b/MediaWiki/Sniffs/Classes/UnusedUseStatementSniff.php
@@ -311,6 +311,12 @@ class UnusedUseStatementSniff implements Sniff {
                        $i++;
                } while ( isset( $tokens[$i] ) && $tokens[$i]['code'] !== T_SEMICOLON );
 
+               // Remove the semicolon too.
+               if ( isset( $tokens[$i] ) && $tokens[$i]['code'] === T_SEMICOLON ) {
+                       $phpcsFile->fixer->replaceToken( $i, '' );
+                       $i++;
+               }
+
                // Also remove whitespace after the semicolon (new lines).
                while ( isset( $tokens[$i] )
                        && $tokens[$i]['code'] === T_WHITESPACE