Fix Coding Standards

The curly braces around the params looks incorrect, no? * {@param $permission}

Removed braces. Please add description for the return statements.
Remaining issues:

FILE: /home/system/Documents/contribution/user_permission_condition-3296510/src/Plugin/Condition/PermissionCondition.php
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FOUND 5 ERRORS AFFECTING 4 LINES
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 137 | ERROR | Description for the @return value is missing
 153 | ERROR | Description for the @return value is missing
 173 | ERROR | Missing parameter comment
 173 | ERROR | Missing parameter type
 175 | ERROR | Description for the @return value is missing
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Time: 43ms; Memory: 8MB