sync-session renames method.

pEpObjCAdapter/PEPInternalSession.m

@@ -1024,7 +1024,7 @@ static NSDictionary *stringToRating;
     }
 }
 
-- (BOOL)leaveDeviceGroupError:(NSError * _Nullable * _Nullable)error
+- (BOOL)leaveDeviceGroup:(NSError * _Nullable * _Nullable)error
 {
     PEPStatus status = (PEPStatus) leave_device_group(self.session);
 

pEpObjCAdapter/PEPSession.m

@@ -385,11 +385,11 @@
     return [session keyReset:identity fingerprint:fingerprint error:error];
 }
 
-- (BOOL)leaveDeviceGroupError:(NSError * _Nullable * _Nullable)error
+- (BOOL)leaveDeviceGroup:(NSError * _Nullable * _Nullable)error
 {
     PEPInternalSession *session = [PEPSessionProvider session];
     RETURN_ON_ERROR(session, error, NO);
-    return [session leaveDeviceGroupError:error];
+    return [session leaveDeviceGroup:error];
 }
 
 - (BOOL)keyResetAllOwnKeysError:(NSError * _Nullable * _Nullable)error

pEpObjCAdapterFramework/PEPSessionProtocol.h

@@ -279,7 +279,7 @@
            error:(NSError * _Nullable * _Nullable)error;
 
 /** Wraps leave_device_group. */
-- (BOOL)leaveDeviceGroupError:(NSError * _Nullable * _Nullable)error;
+- (BOOL)leaveDeviceGroup:(NSError * _Nullable * _Nullable)error;
 
 /**
  Revoke and mistrust all own keys. See key_reset_all_own_keys for details.

pEpObjCTests/PEPSessionTest.m

@@ -1313,7 +1313,7 @@
     [self startSync];
 
     error = nil;
-    XCTAssertTrue([session leaveDeviceGroupError:&error]);
+    XCTAssertTrue([session leaveDeviceGroup:&error]);
     XCTAssertNil(error);
 
     [self shutdownSync];