Remove final warnings.

Author: JimBobSquarePants

src/ImageSharp.Web/Middleware/ImageSharpMiddleware.cs

@@ -274,7 +274,7 @@ private async Task ProcessRequestAsync(
             ImageWorkerResult readResult = default;
             try
             {
-                readResult = await this.IsNewOrUpdatedAsync(sourceImageResolver, imageContext, key);
+                readResult = await this.IsNewOrUpdatedAsync(sourceImageResolver, key);
             }
             finally
             {
@@ -433,7 +433,6 @@ private ValueTask StreamDisposeAsync(Stream stream)
 
         private async Task<ImageWorkerResult> IsNewOrUpdatedAsync(
             IImageResolver sourceImageResolver,
-            ImageContext imageContext,
             string key)
         {
             // Pause until the write has been completed.

tests/ImageSharp.Web.Tests/Processors/WebProcessingExtensionsTests.cs

@@ -29,7 +29,7 @@ public void WebProcessingExtensions_GetBySupportedCommands()
                 ResizeWebProcessor.Height
             };
 
-            var supportedProcessors = WebProcessingExtensions.GetBySupportedCommands(processors, commands).ToArray();
+            IImageWebProcessor[] supportedProcessors = WebProcessingExtensions.GetBySupportedCommands(processors, commands).ToArray();
 
             Assert.Equal(2, supportedProcessors.Length);
             Assert.IsType<ResizeWebProcessor>(supportedProcessors[0]);
@@ -46,7 +46,7 @@ public void WebProcessingExtensions_GetBySupportedCommands_Empty()
 
             var commands = new List<string>();
 
-            var supportedProcessors = WebProcessingExtensions.GetBySupportedCommands(processors, commands).ToArray();
+            IImageWebProcessor[] supportedProcessors = WebProcessingExtensions.GetBySupportedCommands(processors, commands).ToArray();
 
             Assert.Empty(supportedProcessors);
         }