Merge branch 'main' into issues/39928

src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.Unix.cs

@@ -1060,34 +1060,6 @@ private static int OnSigChild(int reapAll, int configureConsole)
             }
         }
 
-        /// <summary>
-        /// This method is called when the number of child processes that are using the terminal changes.
-        /// It updates the terminal configuration if necessary.
-        /// </summary>
-        internal static void ConfigureTerminalForChildProcesses(int increment)
-        {
-            Debug.Assert(increment != 0);
-
-            int childrenUsingTerminalRemaining = Interlocked.Add(ref s_childrenUsingTerminalCount, increment);
-            if (increment > 0)
-            {
-                Debug.Assert(s_processStartLock.IsReadLockHeld);
-
-                // At least one child is using the terminal.
-                Interop.Sys.ConfigureTerminalForChildProcess(childUsesTerminal: true);
-            }
-            else
-            {
-                Debug.Assert(s_processStartLock.IsWriteLockHeld);
-
-                if (childrenUsingTerminalRemaining == 0)
-                {
-                    // No more children are using the terminal.
-                    Interop.Sys.ConfigureTerminalForChildProcess(childUsesTerminal: false);
-                }
-            }
-        }
-
         private static string GetErrorMessage(int error) => Interop.Sys.StrError(error);
     }
 }