to remove the "Enable featured Experiments" button
chrome://flags/
Chrome Labs
Disabled
this setting is stored in the json file
user-data/Local State
setting it to Disabled will add the string "chrome-labs@3" to
.browser.enabled_labs_experiments = [ ]
to remove the "Show side panel" button
chrome://flags/
Hide SidePanel Button
Enabled
this will add "hide-sidepanel-button"
to the enabled_labs_experiments array
to remove the profile button
chrome://flags/
Show avatar/people/profile button
Never
this will add "show-avatar-button@3"
to the enabled_labs_experiments array
example: user-data/Local State
{
"browser": {
"enabled_labs_experiments": [
"chrome-labs@3",
"hide-sidepanel-button",
"show-avatar-button@3"
]
}
}