Remove unnecessary method in operation result.

Author: tgancheva

src/OneBitSoftware.Utilities.OperationResult/OperationResult.cs

@@ -102,7 +102,6 @@ public OperationResult AppendErrors(OperationResult otherOperationResult)
     /// <returns>The current instance of the <see cref="OperationResult"/>.</returns>
     public OperationResult AppendError(string message, int errorCode = 0, LogLevel? logLevel = null)
     {
-        if (message is null) throw new ArgumentNullException(nameof(message));
         if (string.IsNullOrWhiteSpace(message)) throw new ArgumentNullException(nameof(message));
 
         var error = new OperationError(message, errorCode);
@@ -111,15 +110,6 @@ public OperationResult AppendError(string message, int errorCode = 0, LogLevel?
         return this;
     }
 
-    /// <summary>
-    /// Appends an error message to the operation result instance.
-    /// </summary>
-    /// <param name="message">The message that should be appended.</param>
-    /// <param name="errorCode">The unique code of the error.</param>
-    /// <param name="logLevel">The logging severity.</param>
-    /// <returns>The current instance of the <see cref="OperationResult"/>.</returns>
-    public OperationResult AppendErrorMessage(string message, int errorCode = 0, LogLevel? logLevel = null) => this.AppendError(message, errorCode, logLevel);
-
     /// <summary>
     /// Appends an exception to the error message collection and logs the full exception as an Error <see cref="LogEventLevel"/> level. A call to this method will set the Success property to false.
     /// </summary>

src/OneBitSoftware.Utilities.OperationResult/OperationResultValidationExtensions.cs

@@ -51,7 +51,7 @@ public static void ValidateDefault<T, TValue>(this OperationResult<T> operationR
         if (value.Equals(default) == false) return;
 
         var errorMessage = $"{className}, {methodName} - The {propertyName} has a default value.";
-        operationResult.AppendErrorMessage(errorMessage, logLevel: level);
+        operationResult.AppendError(errorMessage, logLevel: level);
     }
 
     /// <summary>
@@ -70,7 +70,7 @@ public static void ValidateNullOrWhitespace<T>(this OperationResult<T> operation
         if (string.IsNullOrWhiteSpace(value) == false) return;
 
         var errorMessage = $"{className}, {methodName} - The {propertyName} is null, empty or consists only of whitespace characters.";
-        operationResult.AppendErrorMessage(errorMessage, logLevel: level);
+        operationResult.AppendError(errorMessage, logLevel: level);
     }
 
     /// <summary>
@@ -91,6 +91,6 @@ public static void ValidateNull<T>(this OperationResult<T> operationResult, obje
         if (value != null) return;
 
         var errorMessage = $"{className}, {methodName} - The {propertyName} is null.";
-        operationResult.AppendErrorMessage(errorMessage, logLevel: level);
+        operationResult.AppendError(errorMessage, logLevel: level);
     }
 }