Update vowel remover function.py

reduced runtime by roughly .29 seconds at 100000 runs

Author: Piombacciaio

vowel remover function.py

@@ -1,7 +1,7 @@
 def vowel_remover(text):
     string = ""
     for l in text:
-        if l.lower() != "a" and l.lower() != "e" and l.lower() != "i" and l.lower() != "o" and l.lower() != "u":
+        if l.lower() not in "aeiou":
             string += l
     return string
-print vowel_remover("hello world!")
+print(vowel_remover("hello world!"))