BatchResponseContent - remove unsed import statements

BatchRequestContent - parametrize object creation of collection classes.

Author: deepak2016

src/main/java/com/microsoft/graph/content/MSBatchRequestContent.java

@@ -59,8 +59,8 @@ public void removeBatchRequesStepWithId(String requestId) {
 	}
 
 	public String getBatchRequestContent() {
-		Map<String, List<Map<String, String>>> batchRequestContentMap = new HashMap();
-		List<Map<String, String>> batchContentArray = new ArrayList();
+		Map<String, List<Map<String, String>>> batchRequestContentMap = new HashMap<>();
+		List<Map<String, String>> batchContentArray = new ArrayList<>();
 		for(MSBatchRequestStep requestStep : batchRequestStepsArray) {
 			batchContentArray.add(getBatchRequestMapFromRequestStep(requestStep));
 		}
@@ -69,7 +69,7 @@ public String getBatchRequestContent() {
 	}
 
 	private Map<String, String> getBatchRequestMapFromRequestStep(MSBatchRequestStep batchRequestStep){
-		Map<String, String> contentmap = new HashMap();
+		Map<String, String> contentmap = new HashMap<>();
 		contentmap.put("id", batchRequestStep.getRequestId());
 		contentmap.put("url", batchRequestStep.getRequest().getRequestLine().getUri());
 		contentmap.put("method", batchRequestStep.getRequest().getRequestLine().getMethod());

src/main/java/com/microsoft/graph/content/MSBatchResponseContent.java

@@ -1,8 +1,5 @@
 package com.microsoft.graph.content;
 
-import java.util.Set;
-
-import org.apache.http.Consts;
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.entity.ContentType;