Uncomment code that has been commented due to slow execution affecting Travis

Author: MaximSmolskiy

project_euler/problem_012/sol1.py

@@ -42,9 +42,8 @@ def solution():
     """Returns the value of the first triangle number to have over five hundred
     divisors.
 
-    # The code below has been commented due to slow execution affecting Travis.
-    # >>> solution()
-    # 76576500
+    >>> solution()
+    76576500
     """
     tNum = 1
     i = 1