Removing unnecessary console log from the preferences controller

[ryanml]

The error was already being logged via log.debug

[metamaskbot]

Builds ready [00b8a8d]

• builds: chrome, firefox, opera
• build viz: Build System
• code coverage: Report
• storybook: Storybook
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • phishing-detect: 0
  • sentry-install: sentry-install
  • ui: 0, 1, 2, 3, 4, 5

Page Load Metrics (625 ± 21 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	51	87	63	9	4
		domContentLoaded	538	735	624	44	21
		load	539	736	625	44	21
		domInteractive	538	735	624	44	21