delete now useless performance.py

provide day skeleton

aoclib/__init__.py

@@ -1,4 +1,3 @@
 from .day import *
 from .tools import *
 from .output import *
-from .performance import *

aoclib/performance.py

@@ -1,8 +0,0 @@
-def print_execution_time(day, part, avg_time):
-    units = ['s', 'ms', 'μs', 'ns']
-    unit = 0
-    while avg_time < 1:
-        avg_time *= 1000
-        unit += 1
-
-    print("Average execution time for day %s part %s: %1.2f%s" % (day, part, avg_time, units[unit]))

day_skel.py

@@ -0,0 +1,13 @@
+from aoclib import AOCDay
+from typing import Any
+
+
+class Day(AOCDay):
+    test_solutions_p1 = []
+    test_solutions_p2 = []
+
+    def part1(self) -> Any:
+        return ""
+
+    def part2(self) -> Any:
+        return ""