removed __main__.py as it is no longer used

src/qibotn/__main__.py

@@ -1,20 +0,0 @@
-import argparse
-
-import qibotn.quimb
-
-
-def parser():
-    parser = argparse.ArgumentParser()
-    parser.add_argument(
-        "--nqubits", default=10, type=int, help="Number of quibits in the circuits."
-    )
-    return parser.parse_args()
-
-
-def main(args: argparse.Namespace):
-    print("Testing for %d nqubits" % (args.nqubits))
-    qibotn.quimb.eval(args.nqubits, args.qasm_circ, args.init_state)
-
-
-if __name__ == "__main__":
-    main(parser())