chore: remove unused function

Removed unused function and update Public API

Author: Michael-Wamae

src/Microsoft.OpenApi/Writers/OpenApiWriterBase.cs

@@ -212,24 +212,11 @@ public virtual void WriteValue(bool value)
             Writer.Write(value.ToString().ToLower());
         }
 
-        /// <summary>
-        /// Write KeyValuePair value.
-        /// </summary>
-        /// <param name="key">The key of the KeyValuePair.</param>
-        /// <param name="value">The value of the KeyValuePair.</param>
-        public virtual void WriteKeyValuePair(object key, object value)
-        {
-            WriteStartObject();
-            WritePropertyName(key?.ToString() ?? string.Empty);
-            WriteValue(value);
-            WriteEndObject();
-        }
-
         /// <summary>
         /// Write hashSet value.
         /// </summary>
         /// <param name="value">The HashSet value.</param>
-        private void WriteHashSet(IEnumerable<object> value)
+        public virtual void WriteHashSet(IEnumerable<object> value)
         {
             WriteStartArray();
             foreach (var item in value)
@@ -297,16 +284,6 @@ public virtual void WriteValue(object value)
             {
                 WriteHashSet(hashSet);
             }
-            else if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(KeyValuePair<,>))
-            {
-                var key = type.GetProperty("Key")?.GetValue(value, null);
-                var val = type.GetProperty("Value")?.GetValue(value, null);
-
-                if (key != null)
-                {
-                    WriteKeyValuePair(key, val);
-                }
-            }
             else
             {
                 throw new OpenApiWriterException(string.Format(SRResource.OpenApiUnsupportedValueType, type.FullName));

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -1973,8 +1973,8 @@ namespace Microsoft.OpenApi.Writers
         protected void VerifyCanWritePropertyName(string name) { }
         public abstract void WriteEndArray();
         public abstract void WriteEndObject();
+        public virtual void WriteHashSet(System.Collections.Generic.IEnumerable<object> value) { }
         public virtual void WriteIndentation() { }
-        public virtual void WriteKeyValuePair(object key, object value) { }
         public abstract void WriteNull();
         public abstract void WritePropertyName(string name);
         public abstract void WriteRaw(string value);