Code cleanup.

Author: bartsli

src/main/java/wtx/woocommerce/api/client/invoker/ApiClient.java

@@ -13,16 +13,6 @@
 
 package wtx.woocommerce.api.client.invoker;
 
-import okhttp3.*;
-import okhttp3.internal.http.HttpMethod;
-import okhttp3.internal.tls.OkHostnameVerifier;
-import okhttp3.logging.HttpLoggingInterceptor;
-import okhttp3.logging.HttpLoggingInterceptor.Level;
-import okio.Buffer;
-import okio.BufferedSink;
-import okio.Okio;
-
-import javax.net.ssl.*;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -37,24 +27,52 @@
 import java.security.KeyStore;
 import java.security.SecureRandom;
 import java.security.cert.Certificate;
-import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
-import java.security.cert.X509Certificate;
 import java.text.DateFormat;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.time.format.DateTimeFormatter;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Objects;
 import java.util.concurrent.TimeUnit;
-import java.util.function.Supplier;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.KeyManager;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.TrustManagerFactory;
+import javax.net.ssl.X509TrustManager;
+
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.Headers;
+import okhttp3.Interceptor;
+import okhttp3.MediaType;
+import okhttp3.MultipartBody;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+import okhttp3.internal.http.HttpMethod;
+import okhttp3.internal.tls.OkHostnameVerifier;
+import okhttp3.logging.HttpLoggingInterceptor;
+import okhttp3.logging.HttpLoggingInterceptor.Level;
+import okio.Buffer;
+import okio.BufferedSink;
+import okio.Okio;
+import wtx.woocommerce.api.client.invoker.auth.ApiKeyAuth;
 import wtx.woocommerce.api.client.invoker.auth.Authentication;
 import wtx.woocommerce.api.client.invoker.auth.HttpBasicAuth;
-import wtx.woocommerce.api.client.invoker.auth.HttpBearerAuth;
-import wtx.woocommerce.api.client.invoker.auth.ApiKeyAuth;
 
 /**
  * <p>ApiClient class.</p>
@@ -79,9 +97,6 @@ public class ApiClient {
     private Map<String, Authentication> authentications;
 
     private DateFormat dateFormat;
-    private DateFormat datetimeFormat;
-    private boolean lenientDatetimeFormat;
-    private int dateLength;
 
     private InputStream sslCaCert;
     private boolean verifyingSsl;