Remove redundant property wrappers and merge test cases

Co-authored-by: jkotas <[email protected]>

Author: Copilot

src/libraries/System.Runtime/tests/System.IO.FileSystem.Tests/Directory/Delete.cs

@@ -14,10 +14,6 @@ public class Directory_Delete_str : FileSystemTest
 
         static bool IsBindMountSupportedAndPrivilegedProcess => IsBindMountSupported && PlatformDetection.IsPrivilegedProcess;
 
-        static bool IsRemoteExecutorSupportedAndUsingNewNormalization => RemoteExecutor.IsSupported;
-
-        static bool IsRemoteExecutorSupportedAndLongPathsAreNotBlockedAndUsingNewNormalization => RemoteExecutor.IsSupported;
-
         #region Utilities
 
         protected virtual void Delete(string path)
@@ -126,7 +122,7 @@ public void DeletingSymLinkDoesntDeleteTarget()
             Assert.False(Directory.Exists(linkPath), "linkPath should no longer exist");
         }
 
-        [ConditionalFact(nameof(IsRemoteExecutorSupportedAndUsingNewNormalization))]
+        [ConditionalFact(nameof(RemoteExecutor.IsSupported))]
         public void ExtendedDirectoryWithSubdirectories()
         {
             RemoteExecutor.Invoke(() =>
@@ -139,7 +135,7 @@ public void ExtendedDirectoryWithSubdirectories()
             }).Dispose();
         }
 
-        [ConditionalFact(nameof(IsRemoteExecutorSupportedAndLongPathsAreNotBlockedAndUsingNewNormalization))]
+        [ConditionalFact(nameof(RemoteExecutor.IsSupported))]
         public void LongPathExtendedDirectory()
         {
             RemoteExecutor.Invoke(() =>

src/libraries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/IO/PathTests_Windows.cs

@@ -237,21 +237,15 @@ public static void GetFullPath_ValidLegacy_ValidExtendedPaths(string path)
             InlineData(@"\\.\UNC\LOCALHOST\shareF\test.txt.~SS", @"\\.\UNC\LOCALHOST\shareF\test.txt.~SS"),
             InlineData(@"\\.\UNC\LOCALHOST\shareG", @"\\.\UNC\LOCALHOST\shareG"),
             InlineData(@"\\.\UNC\LOCALHOST\shareH\dir", @"\\.\UNC\LOCALHOST\shareH\dir"),
+            InlineData(@"\\.\UNC\LOCALHOST\shareI\. ", @"\\.\UNC\LOCALHOST\shareI\"),
+            InlineData(@"\\.\UNC\LOCALHOST\shareJ\.. ", @"\\.\UNC\LOCALHOST\shareJ\"),
             InlineData(@"\\.\UNC\LOCALHOST\shareK\    ", @"\\.\UNC\LOCALHOST\shareK\"),
             InlineData(@"\\.\UNC\LOCALHOST\  shareL\", @"\\.\UNC\LOCALHOST\  shareL\")]
         public void GetFullPath_UNC_Valid(string path, string expected)
         {
             Assert.Equal(expected, Path.GetFullPath(path));
         }
 
-        [Theory,
-            InlineData(@"\\.\UNC\LOCALHOST\shareI\. ", @"\\.\UNC\LOCALHOST\shareI\"),
-            InlineData(@"\\.\UNC\LOCALHOST\shareJ\.. ", @"\\.\UNC\LOCALHOST\shareJ\")]
-        public static void GetFullPath_Windows_UNC_Valid_LegacyPathSupport(string path, string expected)
-        {
-            Assert.Equal(expected, Path.GetFullPath(path));
-        }
-
         [Fact]
         public static void GetFullPath_Windows_83Paths()
         {