some linter fixes and folder/file renames

src/pkg/selectors/teamsChats.go

@@ -449,10 +449,11 @@ func (s TeamsChatsScope) Get(cat teamsChatsCategory) []string {
 	return getCatValue(s, cat)
 }
 
-// sets a value by category to the scope.  Only intended for internal use.
-func (s TeamsChatsScope) set(cat teamsChatsCategory, v []string, opts ...option) TeamsChatsScope {
-	return set(s, cat, v, opts...)
-}
+// kept around because it'll likely be needed again in later additions.
+// // sets a value by category to the scope.  Only intended for internal use.
+// func (s TeamsChatsScope) set(cat teamsChatsCategory, v []string, opts ...option) TeamsChatsScope {
+// 	return set(s, cat, v, opts...)
+// }
 
 // setDefaults ensures that contact folder, mail folder, and user category
 // scopes all express `AnyTgt` for their child category types.

src/pkg/services/m365/api/teamsChats_pager_test.go

@@ -1,7 +1,6 @@
 package api
 
 import (
-	"regexp"
 	"testing"
 
 	"github.com/alcionai/clues"
@@ -81,8 +80,6 @@ func testGetChatByID(
 	require.NotNil(t, chat)
 }
 
-var attachmentHtmlRegexp = regexp.MustCompile("<attachment id=\"[a-zA-Z0-9].*\"></attachment>")
-
 func testEnumerateChatMessages(
 	t *testing.T,
 	ac Chats,