Remove defunct entity filter from Text Space View (#2544)

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### What

Noticed while testing: Removed text entity filter ui; this was already
defunct on main and is redundant to entity visibility property.

Was originally part of #2522 

Test via `python ./examples/python/text_logging/main.py`

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)

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PR Build Summary: https://build.rerun.io/pr/2544

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Docs preview: https://rerun.io/preview/8e1e06b/docs
Examples preview: https://rerun.io/preview/8e1e06b/examples
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crates/re_space_view_text/src/space_view_class.rs

@@ -70,7 +70,6 @@ impl SpaceViewClass for TextSpaceView {
             col_timelines,
             col_entity_path,
             col_log_level,
-            row_entity_paths,
             row_log_levels,
         } = &mut state.filters;
 
@@ -85,14 +84,6 @@ impl SpaceViewClass for TextSpaceView {
             });
             ui.end_row();
 
-            ctx.re_ui.grid_left_hand_label(ui, "Entity Filter");
-            ui.vertical(|ui| {
-                for (entity_path, visible) in row_entity_paths {
-                    ui.checkbox(visible, &entity_path.to_string());
-                }
-            });
-            ui.end_row();
-
             ctx.re_ui.grid_left_hand_label(ui, "Level Filter");
             ui.vertical(|ui| {
                 for (log_level, visible) in row_log_levels {
@@ -171,7 +162,6 @@ pub struct ViewTextFilters {
     pub col_log_level: bool,
 
     // Row filters: which rows should be visible?
-    pub row_entity_paths: BTreeMap<EntityPath, bool>,
     pub row_log_levels: BTreeMap<String, bool>,
 }
 
@@ -181,20 +171,12 @@ impl Default for ViewTextFilters {
             col_entity_path: true,
             col_log_level: true,
             col_timelines: Default::default(),
-            row_entity_paths: Default::default(),
             row_log_levels: Default::default(),
         }
     }
 }
 
 impl ViewTextFilters {
-    pub fn is_entity_path_visible(&self, entity_path: &EntityPath) -> bool {
-        self.row_entity_paths
-            .get(entity_path)
-            .copied()
-            .unwrap_or(true)
-    }
-
     pub fn is_log_level_visible(&self, level: &str) -> bool {
         self.row_log_levels.get(level).copied().unwrap_or(true)
     }
@@ -208,18 +190,13 @@ impl ViewTextFilters {
             col_timelines,
             col_entity_path: _,
             col_log_level: _,
-            row_entity_paths,
             row_log_levels,
         } = self;
 
         for timeline in ctx.store_db.timelines() {
             col_timelines.entry(*timeline).or_insert(true);
         }
 
-        for entity_path in text_entries.iter().map(|te| &te.entity_path) {
-            row_entity_paths.entry(entity_path.clone()).or_insert(true);
-        }
-
         for level in text_entries.iter().filter_map(|te| te.level.as_ref()) {
             row_log_levels.entry(level.clone()).or_insert(true);
         }