Changes from running the release script (#18659)

These are changes related to preparing to release the package.

sdk/mixedreality/Azure.MixedReality.Authentication/CHANGELOG.md

@@ -1,17 +1,6 @@
 # Release History
 
-## 1.0.0-beta.1 (2021-02-09)
+## 1.0.0-beta.1 (2021-02-10)
 
-- Removed nullable annotations per guidance.
+- Initial release.
 
-## 1.0.0-preview.3 (2021-01-15)
-
-- Updated to latest version of spec file which changes the account identifier to be a `Guid` rather than a `string`.
-
-## 1.0.0-preview.2 (2021-01-12)
-
-- Configured with shared source.
-
-## 1.0.0-preview.1 (2020-10-27)
-
-- Initial client.

sdk/mixedreality/Azure.MixedReality.Authentication/src/Azure.MixedReality.Authentication.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure Mixed Reality STS Client</AssemblyTitle>
     <Version>1.0.0-beta.1</Version>