Unwind the ci_efficiency/citadel:buck2_ignore knob

Reviewed By: shayne-fletcher

Differential Revision: D59202368

fbshipit-source-id: 66d9ad0ff9423b1eb73166162e2a333ae0ee6b11

btd/src/buck/cells.rs

@@ -13,7 +13,6 @@ use std::path::Path;
 
 use anyhow::Context as _;
 use itertools::Itertools;
-use td_util::knobs::check_boolean_knob;
 use td_util::prelude::*;
 use thiserror::Error;
 
@@ -228,13 +227,7 @@ impl CellInfo {
     pub fn is_ignored(&self, path: &CellPath) -> bool {
         match self.cells.get(&path.cell()) {
             None => false,
-            Some(data) => {
-                if check_boolean_knob("ci_efficiency/citadel:buck2_ignore") {
-                    data.ignore.is_match(path.path().as_str())
-                } else {
-                    false
-                }
-            }
+            Some(data) => data.ignore.is_match(path.path().as_str()),
         }
     }
 }