chore: Remove unnecessary event prop

[dan437]

Description

Removes an unnecessary event prop smart_transaction_duplicated.

Related issues

Fixes:

Manual testing steps

1. This event prop won't be available anymore in some events after submitting a smart transaction.

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 [2117ac1]

• 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 (1909 ± 56 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1735	2146	1914	113	54
		domContentLoaded	1721	2073	1871	101	48
		load	1734	2151	1909	116	56
		domInteractive	29	204	52	37	18
		backgroundConnect	10	80	35	24	12
		firstReactRender	50	295	147	94	45
		getState	47	292	144	70	33
		initialActions	0	1	0	0	0
		loadScripts	1269	1534	1396	79	38
		setupStore	6	72	12	14	7
		uiStartup	1986	3095	2404	339	163

Bundle size diffs [🚀 Bundle size reduced!]

• background: -44 Bytes (-0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[httpJunkie]

Simple change n removal of props that are unecessary