Update arabic.py

Fixes amueller#723

examples/arabic.py

@@ -4,29 +4,19 @@
 ===============
 Generating a wordcloud from Arabic text
 
-Dependencies:
-- bidi.algorithm
-- arabic_reshaper
-
-Dependencies installation:
-pip install python-bidi arabic_reshape
+Proper font is needed otherwise text might not be displayed probably
 """
 
 import os
 import codecs
 from wordcloud import WordCloud
-import arabic_reshaper
-from bidi.algorithm import get_display
 
 # get data directory (using getcwd() is needed to support running example in generated IPython notebook)
 d = os.path.dirname(__file__) if "__file__" in locals() else os.getcwd()
 
 # Read the whole text.
 f = codecs.open(os.path.join(d, 'arabicwords.txt'), 'r', 'utf-8')
-
-# Make text readable for a non-Arabic library like wordcloud
-text = arabic_reshaper.reshape(f.read())
-text = get_display(text)
+text = f.read()
 
 # Generate a word cloud image
 wordcloud = WordCloud(font_path='fonts/NotoNaskhArabic/NotoNaskhArabic-Regular.ttf').generate(text)