add cleanup to the release script

Author: zihejia

Samples/ContextAPIMixpanel/.gitignore

@@ -34,6 +34,7 @@ local.properties
 node_modules/
 npm-debug.log
 yarn-error.log
+yarn.lock
 
 # BUCK
 buck-out/

Samples/ContextAPIMixpanel/yarn.lock

@@ -34,6 +34,7 @@ local.properties
 node_modules/
 npm-debug.log
 yarn-error.log
+yarn.lock
 
 # BUCK
 buck-out/

Samples/MixpanelDemo/.gitignore

@@ -34,6 +34,7 @@ local.properties
 node_modules/
 npm-debug.log
 yarn-error.log
+yarn.lock
 
 # BUCK
 buck-out/

Samples/MixpanelDemo/yarn.lock

@@ -11,14 +11,12 @@
 def bump_version():
     replace_version('package.json', "\"version\": \"" + args.old + "\"", "\"version\": \"" + args.new + "\"")
     replace_version('__tests__/index.test.js', "\"$lib_version\": \"" + args.old + "\"", "\"$lib_version\": \"" + args.new + "\"")
-    subprocess.call('cd Samples/MixpanelDemo;yarn upgrade mixpanel-react-native --latest', shell=True)
-    subprocess.call('cd Samples/SimpleMixpanel;yarn upgrade mixpanel-react-native --latest', shell=True)
-    subprocess.call('cd Samples/ContextAPIMixpanel;yarn upgrade mixpanel-react-native --latest', shell=True)
+    subprocess.call('cd Samples/MixpanelDemo;rm -fr node_modules;rm -fr android/app/build', shell=True)
+    subprocess.call('cd Samples/SimpleMixpanel;rm -fr node_modules;rm -fr android/app/build', shell=True)
+    subprocess.call('cd Samples/ContextAPIMixpanel;rm -fr node_modules;rm -fr android/app/build', shell=True)
     subprocess.call('git add package.json', shell=True)
     subprocess.call('git add __tests__/index.test.js', shell=True)
-    subprocess.call('git add Samples/MixpanelDemo/yarn.lock', shell=True)
-    subprocess.call('git add Samples/SimpleMixpanel/yarn.lock', shell=True)
-    subprocess.call('git add Samples/ContextAPIMixpanel/yarn.lock', shell=True)
+
     subprocess.call('git commit -m "Version {}"'.format(args.new), shell=True)
     subprocess.call('git push', shell=True)