remove redundand similar to test

Author: ewgenius

datafusion/sql/src/unparser/expr.rs

@@ -1723,16 +1723,6 @@ mod tests {
                 }),
                 r#"a NOT ILIKE 'foo' ESCAPE 'o'"#,
             ),
-            (
-                Expr::SimilarTo(Like {
-                    negated: false,
-                    expr: Box::new(col("a")),
-                    pattern: Box::new(lit("foo")),
-                    escape_char: Some('o'),
-                    case_insensitive: false,
-                }),
-                r#"a LIKE 'foo' ESCAPE 'o'"#,
-            ),
             (
                 Expr::SimilarTo(Like {
                     negated: false,