Remove Platform.HasCom query

src/System.Management.Automation/CoreCLR/CorePsPlatform.cs

@@ -217,14 +217,6 @@ namespace System.Management.Automation
 
         }
 
-        // ComObjectType is null on CoreCLR for Linux since there is
-        // no COM support on Linux
-        internal static bool HasCom()
-        {
-            // TODO: catch exception from Type.IsComObject
-            return IsWindows;
-        }
-
         // The Antimalware Scan Interface is not supported on Linux
         internal static bool HasAmsi()
         {

src/System.Management.Automation/engine/runtime/Binding/Binders.cs

@@ -677,14 +677,11 @@ namespace System.Management.Automation.Language
 
         private static TypeInfo GetComObjectType()
         {
-            if (Platform.HasCom())
-            {
-                return typeof(object).GetTypeInfo().Assembly.GetType("System.__ComObject").GetTypeInfo();
-            }
-            else
-            {
-                return null;
-            }
+#if LINUX
+            return null;
+#else
+            return typeof(object).GetTypeInfo().Assembly.GetType("System.__ComObject").GetTypeInfo();
+#endif
         }
 
         internal static bool IsComObject(object obj)

src/System.Management.Automation/utils/ExtensionMethods.cs

@@ -130,12 +130,9 @@ namespace System.Management.Automation
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         internal static bool IsComObject(this Type type)
         {
-            if (!Platform.HasCom())
-            {
-                return false;
-            }
-
-#if CORECLR // Type.IsComObject(Type) is not in CoreCLR
+#if LINUX
+            return false;
+#elif CORECLR // Type.IsComObject(Type) is not in CoreCLR
             return ComObjectType.IsAssignableFrom(type);
 #else
             return type.IsCOMObject;

test/csharp/test_CorePsPlatform.cs

@@ -15,12 +15,6 @@ namespace PSTests
             Assert.True(Platform.IsCore);
         }
 
-        [Fact]
-        public static void TestHasCom()
-        {
-            Assert.False(Platform.HasCom());
-        }
-
         [Fact]
         public static void TestHasAmsi()
         {