Azure Identity February Release (#5307)

* Azure Identity February Release

* Update CHANGELOG.md release date to Thurs

* Update release date.

* Remove empty CL sections.

Author: ahsonkhan

sdk/identity/azure-identity/CHANGELOG.md

@@ -1,17 +1,11 @@
 # Release History
 
-## 1.7.0-beta.2 (Unreleased)
+## 1.7.0-beta.2 (2024-02-09)
 
 ### Features Added
 
 - [[#4474]](https://github.com/Azure/azure-sdk-for-cpp/issues/4474) Enable proactive renewal of Managed Identity tokens.
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
-
 ## 1.7.0-beta.1 (2024-01-11)
 
 ### Features Added