CSHARP-4110: Remove initialCount upper bound check in SemaphoreSlimSignalable

Author: BorisDog

src/MongoDB.Driver.Core/Core/Misc/SemaphoreSlimSignalable.cs

@@ -86,8 +86,7 @@ public void Dispose()
 
         public SemaphoreSlimSignalable(int initialCount)
         {
-            // reasonable upper bound for initialCount to ensure overall correctness
-            Ensure.IsBetween(initialCount, 0, 1024, nameof(initialCount));
+            Ensure.IsGreaterThanOrEqualToZero(initialCount, nameof(initialCount));
 
             _semaphore = new SemaphoreSlim(initialCount);
             _syncRoot = new object();

tests/MongoDB.Driver.Core.Tests/Core/Misc/SemaphoreSlimSignalableTests.cs

@@ -28,13 +28,13 @@ public class SemaphoreSlimSignalableTests
     {
         [Theory]
         [ParameterAttributeData]
-        public void Constructor_should_check_arguments([Values(-2, -1, 1025)] int count)
+        public void Constructor_should_check_arguments([Values(-2, -1)] int count)
         {
             var exception = Record.Exception(() => new SemaphoreSlimSignalable(count));
 
             var e = exception.Should().BeOfType<ArgumentOutOfRangeException>().Subject;
             e.ParamName.Should().Be("initialCount");
-            e.Message.Should().StartWith("Value is not between");
+            e.Message.Should().StartWith("Value is not greater than or equal to 0");
         }
 
         [Theory]