fix: remove network modal

[sahar-fehri]

Description

PR to remove network modal

Related issues

Fixes:

Manual testing steps

1. Go to home page and click Network selector and go to 'Additional networks' section
2. Click on "Add" and then click on "approve"
3. You should not see another network modal "You're now using.."

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

Builds ready [1beb0d2]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1795 ± 59 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1538	1988	1790	123	59
		domContentLoaded	1521	1941	1759	116	56
		load	1540	1991	1795	123	59
		domInteractive	26	93	39	19	9
		backgroundConnect	15	56	33	14	7
		firstReactRender	16	106	31	26	12
		getState	5	74	19	19	9
		initialActions	0	1	0	0	0
		loadScripts	1113	1450	1300	96	46
		setupStore	6	79	20	22	11
		uiStartup	1701	2231	2011	134	64

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: -8.23 KiB (-0.11%)
• common: 0 Bytes (0.00%)