[Communication] - SMS - Removed version 1.1.1 from CHANGELOG.md (#29456)

### Packages impacted by this PR


### Issues associated with this PR


### Describe the problem that is addressed by this PR


### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?

Can't release beta 1.2.0 version because of addition of version 1.1.1 to
Changelog by bot.
### Are there test cases added in this PR? _(If not, why?)_

n/a
### Provide a list of related PRs _(if any)_
n/a

### Command used to generate this PR:**_(Applicable only to SDK release
request PRs)_

### Checklists
- [ ] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [ ] Added a changelog (if necessary)

sdk/communication/communication-sms/CHANGELOG.md

@@ -6,16 +6,6 @@
 
 - Added DeliveryReportTimeoutInSeconds to smsSendOptions.
 
-## 1.1.1 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
-
 ## 1.1.0 (2023-11-30)
 
 ### Features Added

sdk/communication/communication-sms/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@azure/communication-sms",
-  "version": "1.1.1",
+  "version": "1.2.0-beta.1",
   "description": "SDK for Azure Communication SMS service which facilitates the sending of SMS messages.",
   "sdk-type": "client",
   "main": "dist/index.js",