Remove pip overwrites (#12604)

* remove overwrites on pip instructions coming from source

* removing examples version overwrite

Author: aaronmarkham

docs/build_version_doc/AddVersion.py

@@ -87,30 +87,5 @@
                 outstr = outstr.replace('http://mxnet.io', 'https://mxnet.incubator.apache.org/'
                                                                'versions/%s' % (args.current_version))
 
-            # Fix git clone and pip installation to specific tag
-            pip_pattern = ['', '-cu80', '-cu75', '-cu80mkl', '-cu75mkl', '-mkl']
-            if args.current_version == 'master':
-                outstr = outstr.replace('git clone --recursive https://github.com/dmlc/mxnet',
-                                        'git clone --recursive https://github.com/apache/incubator-mxnet.git mxnet')
-                for trail in pip_pattern:
-                    outstr = outstr.replace('pip install mxnet%s<' % (trail),
-                                            'pip install mxnet%s --pre<' % (trail))
-                    outstr = outstr.replace('pip install mxnet%s\n<' % (trail),
-                                            'pip install mxnet%s --pre\n<' % (trail))
-            else:
-                outstr = outstr.replace('git clone --recursive https://github.com/dmlc/mxnet',
-                                        'git clone --recursive https://github.com/apache/incubator-mxnet.git mxnet '
-                                        '--branch %s' % (args.current_version))
-                for trail in pip_pattern:
-                    outstr = outstr.replace('pip install mxnet%s<' % (trail),
-                                            'pip install mxnet%s==%s<' % (trail, args.current_version))
-                    outstr = outstr.replace('pip install mxnet%s\n<' % (trail),
-                                            'pip install mxnet%s==%s\n<' % (trail, args.current_version))
-
-            # Add tag for example link
-            outstr = outstr.replace('https://github.com/apache/incubator-mxnet/tree/master/example',
-                                    'https://github.com/apache/incubator-mxnet/tree/%s/example' %
-                                    (args.current_version))
-
             with open(os.path.join(path, name), "w") as outf:
                 outf.write(outstr)