Disable 'Use a Prediction Service to load sites quickly'

[jumde]

Steps to Reproduce

1. Navigate to chrome://settings/?search=Priv you will see Use a Prediction Service option enabled

Actual result:

The option is enabled

Expected result:

The option should be disabled

Reproduces how often:

100%

Brave version (about:brave info)

0.54.0 Chromium: 69.0.3497.32 (Official Build) dev (64-bit)

Reproducible on current release:

Yes

[btlechowski]

Verification passed on

Brave	0.55.5 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
Revision	16ed95b41bb05e565b11fb66ac33c660b721f778-refs/branch-heads/3538@{#306}
OS	Windows 7

Verification Passed on

Brave	0.55.6 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
Revision	16ed95b41bb05e565b11fb66ac33c660b721f778-refs/branch-heads/3538@{#306}
OS	Linux

Went through verification using the following build under macOS 10.13.6 x64 - PASSED

Brave	0.55.6 Chromium: 70.0.3538.16 (Official Build) dev (64-bit)
Revision	16ed95b41bb05e565b11fb66ac33c660b721f778-refs/branch-heads/3538@{#306}
OS	Mac OS X