Wildcard imports revert

Author: pjagielski

sdk/src/main/java/com/uber/sdk/rides/auth/OAuth2Credentials.java

@@ -22,7 +22,12 @@
 
 package com.uber.sdk.rides.auth;
 
-import com.google.api.client.auth.oauth2.*;
+import com.google.api.client.auth.oauth2.AuthorizationCodeFlow;
+import com.google.api.client.auth.oauth2.AuthorizationCodeTokenRequest;
+import com.google.api.client.auth.oauth2.BearerToken;
+import com.google.api.client.auth.oauth2.ClientParametersAuthentication;
+import com.google.api.client.auth.oauth2.Credential;
+import com.google.api.client.auth.oauth2.TokenResponse;
 import com.google.api.client.http.GenericUrl;
 import com.google.api.client.http.HttpTransport;
 import com.google.api.client.http.javanet.NetHttpTransport;