fix up comments

core/dbt/context/context_config.py

@@ -49,7 +49,6 @@ def get_config_dict(self, resource_type: NodeType) -> Dict[str, Any]:
             model_configs = unrendered.get("exposures")
         else:
             model_configs = unrendered.get("models")
-        # by the time it get here enabled should be false when set at project level
         if model_configs is None:
             return {}
         else:

core/dbt/parser/manifest.py

@@ -359,7 +359,6 @@ def load(self):
             self.manifest.rebuild_disabled_lookup()
 
             # Load yaml files
-            # sources get added to manifest here
             parser_types = [SchemaParser]
             for project in self.all_projects.values():
                 if project.project_name not in project_parser_files:
@@ -380,13 +379,12 @@ def load(self):
             self._perf_info.patch_sources_elapsed = time.perf_counter() - start_patch
 
             # We need to rebuild disabled in order to include disabled sources
-            # This is where disabled sources get removed from the manifest
             self.manifest.rebuild_disabled_lookup()
 
             # copy the selectors from the root_project to the manifest
             self.manifest.selectors = self.root_project.manifest_selectors
 
-            # update the refs, sources, docs and metrics  (TODO: exposures?)
+            # update the refs, sources, docs and metrics depends_on.nodes
             # These check the created_at time on the nodes to
             # determine whether they need processing.
             start_process = time.perf_counter()
@@ -1146,7 +1144,7 @@ def _process_refs_for_metric(manifest: Manifest, current_project: str, metric: P
 
         if target_model is None or isinstance(target_model, Disabled):
             # This may raise. Even if it doesn't, we don't want to add
-            # this exposure to the graph b/c there is no destination exposure
+            # this metric to the graph b/c there is no destination metric
             metric.config.enabled = False
             invalid_ref_fail_unless_test(
                 metric,

core/dbt/parser/schemas.py

@@ -1050,12 +1050,8 @@ def _generate_exposure_config(
 
         # configs with precendence set
         precedence_configs = dict()
-        # first apply exposure configs
+        # apply exposure configs
         precedence_configs.update(target.config)
-        # then overwite anything that is defined on exposure
-        # this is not quite complex enough for configs that can be set as top-level node keys, but
-        # it works while exposure configs can only include `enabled`.
-        # precedence_configs.update(target.config)
 
         return generator.calculate_node_config(
             config_call_dict={},