remove dead code (#1820)

the number of blocked contacts is just the size of the array returned by getBlockedContacts()

jni/dc_wrapper.c

@@ -296,12 +296,6 @@ JNIEXPORT jintArray Java_com_b44t_messenger_DcContext_getContacts(JNIEnv *env, j
 }
 
 
-JNIEXPORT jint Java_com_b44t_messenger_DcContext_getBlockedCount(JNIEnv *env, jobject obj)
-{
-    return dc_get_blocked_cnt(get_dc_context(env, obj));
-}
-
-
 JNIEXPORT jintArray Java_com_b44t_messenger_DcContext_getBlockedContacts(JNIEnv *env, jobject obj)
 {
     dc_array_t* ca = dc_get_blocked_contacts(get_dc_context(env, obj));

src/com/b44t/messenger/DcContext.java

@@ -123,7 +123,6 @@ public class DcContext {
     public native boolean      mayBeValidAddr       (String addr);
     public native int          lookupContactIdByAddr(String addr);
     public native int[]        getContacts          (int flags, String query);
-    public native int          getBlockedCount      ();
     public native int[]        getBlockedContacts   ();
     public @NonNull DcContact  getContact           (int contact_id) { return new DcContact(getContactCPtr(contact_id)); }
     public native int          createContact        (String name, String addr);