Remove unused imports

Author: Grace Yim

src/main/java/com/toopher/ToopherApi.java

@@ -6,7 +6,6 @@
 import org.apache.http.HttpResponse;
 import org.apache.http.NameValuePair;
 import org.apache.http.StatusLine;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.HttpResponseException;
 import org.apache.http.client.ResponseHandler;

src/test/java/com/toopher/HttpClientMock.java

@@ -19,8 +19,6 @@
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.net.URI;
-import java.util.HashMap;
-import java.util.Map;
 import java.util.concurrent.Semaphore;
 
 @Ignore