Remove unused assembly

Author: jviau

src/WebJobs.Script/runtimeassemblies.json

@@ -787,10 +787,6 @@
       "name": "Microsoft.Extensions.Primitives",
       "resolutionPolicy": "minorMatchOrLower"
     },
-    {
-      "name": "Microsoft.Extensions.Telemetry.Abstractions",
-      "resolutionPolicy": "minorMatchOrLower"
-    },
     {
       "name": "Microsoft.Extensions.WebEncoders",
       "resolutionPolicy": "minorMatchOrLower"

tools/ExtensionsMetadataGenerator/test/ExtensionsMetadataGeneratorTests/ExistingRuntimeAssemblies.txt

@@ -141,7 +141,6 @@ Microsoft.Extensions.Options.dll
 Microsoft.Extensions.Options.ConfigurationExtensions.dll
 Microsoft.Extensions.Options.DataAnnotations.dll
 Microsoft.Extensions.Primitives.dll
-Microsoft.Extensions.Telemetry.Abstractions.dll
 Microsoft.Extensions.WebEncoders.dll
 Microsoft.IdentityModel.Logging.dll
 Microsoft.IdentityModel.Protocols.dll