Update README.md

Author: dmalan

Diff for: README.md

@@ -39,50 +39,3 @@ s = cs50.get_string();
     ```
     python tests/sql.py
     ```
-
-### Sample Tests
-
-```
-import cs50
-db = cs50.SQL("sqlite:///foo.db")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id INTEGER PRIMARY KEY, val TEXT, bin BLOB)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-
----
-
-import cs50
-db = cs50.SQL("mysql://root@localhost/test")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id INTEGER PRIMARY KEY, val TEXT, bin BLOB)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-
----
-
-import cs50
-db = cs50.SQL("postgresql://postgres@localhost/test")
-db.execute("CREATE TABLE IF NOT EXISTS cs50 (id SERIAL PRIMARY KEY, val VARCHAR(16), bin BYTEA)")
-db.execute("INSERT INTO cs50 (val) VALUES('a')")
-db.execute("INSERT INTO cs50 (val) VALUES('b')")
-db.execute("BEGIN")
-db.execute("INSERT INTO cs50 (val) VALUES('c')")
-db.execute("INSERT INTO cs50 (val) VALUES('x')")
-db.execute("INSERT INTO cs50 (val) VALUES('y')")
-db.execute("ROLLBACK")
-db.execute("INSERT INTO cs50 (val) VALUES('z')")
-db.execute("COMMIT")
-```