Merge pull request #425 from Zili-Yang-z/issue413_attempt3

issue#413 potential solution

Author: chrismattmann

tika/__init__.py

@@ -16,11 +16,8 @@
 
 __version__ = "3.1.0"
 
-try:
-    __import__('pkg_resources').declare_namespace(__name__)
-except ImportError:
-    from pkgutil import extend_path
-    __path__ = extend_path(__path__, __name__)
+from pkgutil import extend_path
+__path__ = extend_path(__path__, __name__)
 
 def initVM():
     ''' back compat method for JCC based Tika'''