feat(traces): Remove project filter on traces (#71565)

### Summary
Traces are distributed across projects by nature, a project filter
limits the ability to search traces properly, and makes for confusing UX
as you have to limit projects on a per project basis.

static/app/views/performance/traces/content.tsx

@@ -14,7 +14,6 @@ import {DatePageFilter} from 'sentry/components/organizations/datePageFilter';
 import {EnvironmentPageFilter} from 'sentry/components/organizations/environmentPageFilter';
 import PageFilterBar from 'sentry/components/organizations/pageFilterBar';
 import {normalizeDateTimeParams} from 'sentry/components/organizations/pageFilters/parse';
-import {ProjectPageFilter} from 'sentry/components/organizations/projectPageFilter';
 import Panel from 'sentry/components/panels/panel';
 import PanelHeader from 'sentry/components/panels/panelHeader';
 import PanelItem from 'sentry/components/panels/panelItem';
@@ -147,7 +146,6 @@ export function Content() {
   return (
     <LayoutMain fullWidth>
       <PageFilterBar condensed>
-        <ProjectPageFilter />
         <EnvironmentPageFilter />
         <DatePageFilter defaultPeriod="2h" />
       </PageFilterBar>