framework/db/Schema.php
public function unquoteSimpleTableName($name)
    {
        if (is_string($this->tableQuoteCharacter)) {
            $startingCharacter = $this->tableQuoteCharacter;
        } else {
            $startingCharacter = $this->tableQuoteCharacter[0];
        }
        return strpos($name, $startingCharacter) === false ? $name : substr($name, 1, -1);
    }
public function unquoteSimpleTableName($name)
    {
        if (is_string($this->tableQuoteCharacter)) {
            $startingCharacter = $this->tableQuoteCharacter;
        } else {
            $startingCharacter = $this->tableQuoteCharacter[0];
        }
        return strpos($name, $startingCharacter) === false ? $name : substr($name, 1, -1);
    }
Unquotes a simple table name.
A simple table name should contain the table name only without any schema prefix.
If the table name is not quoted, this method will do nothing.
@param string $name table name.
@return string unquoted table name.
@since 2.0.14