Address review comments

Author: Mansi-mParticle

android-core/src/main/java/com/mparticle/identity/IdentityApi.java

@@ -350,25 +350,6 @@ private void reset() {
         }
     }
 
-    private  String generateHash(String input) {
-        try {
-            MessageDigest digest = MessageDigest.getInstance("SHA-256");
-            byte[] hashBytes = digest.digest(input.getBytes());
-
-            // Convert byte array to hex string
-            StringBuilder hexString = new StringBuilder();
-            for (byte b : hashBytes) {
-                String hex = Integer.toHexString(0xff & b);
-                if (hex.length() == 1) hexString.append('0');
-                hexString.append(hex);
-            }
-            return hexString.toString();
-        } catch (NoSuchAlgorithmException e) {
-            //throw new RuntimeException("Hashing algorithm not found", e);
-        }
-        return null;
-
-    }
 
     private BaseIdentityTask makeIdentityRequest(IdentityApiRequest request, final IdentityNetworkRequestRunnable networkRequest) {
         if (request == null) {

android-core/src/main/java/com/mparticle/identity/MParticleIdentityClientImpl.java

@@ -69,7 +69,8 @@ public class MParticleIdentityClientImpl extends MParticleBaseClientImpl impleme
     public  final String LOGIN_CALL = "login";
     public  final String IDENTIFY_CALL = "identify";
      final String IDENTITY_HEADER_TIMEOUT = "X-MP-Max-Age";
-    static Long maxAgeTimeForIdentityCache = 0L;
+    private Long maxAgeTimeForIdentityCache = 0L;
+    private Long maxAgeTime = 86400L;
      Long identityCacheTime = 0L;
     HashMap<String, IdentityHttpResponse> identityCacheArray = new HashMap<>();
 
@@ -87,7 +88,6 @@ public IdentityHttpResponse login(IdentityApiRequest request) throws JSONExcepti
         if (existsResponse != null) {
             return existsResponse;
         }
-        Long maxAgeTime=86400L;
         Logger.verbose("Identity login request: " + jsonObject.toString());
         MPConnection connection = getPostConnection(LOGIN_PATH, jsonObject.toString());
         String url = connection.getURL().toString();
@@ -127,7 +127,7 @@ public IdentityHttpResponse identify(IdentityApiRequest request) throws JSONExce
             return existsResponse;
         }
         JSONObject jsonObject = getStateJson(request);
-        Long maxAgeTime=86400L;
+
         Logger.verbose("Identity identify request: \n" + jsonObject.toString());
         MPConnection connection = getPostConnection(IDENTIFY_PATH, jsonObject.toString());
         String url = connection.getURL().toString();