Remove dotComWebLoginEnabled

[crazytonyli]

Description

Delete some unused code. It's easier to review with the hiding whitespace option on.

Testing instructions

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 26.5. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Configuration	Release-Alpha
	Build Number	29730
	Version	PR #24977
	Bundle ID	org.wordpress.alpha
	Commit	1b907b8
	Installation URL	44njh4efakof8

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	29730
	Version	PR #24977
	Bundle ID	com.jetpack.alpha
	Commit	1b907b8
	Installation URL	0ssa6nv8h96d8

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud