diff --git a/src/main/types.js b/src/main/types.js
index 3f45b33c..c613d51f 100644
--- a/src/main/types.js
+++ b/src/main/types.js
@@ -43,15 +43,3 @@ export type InflatedBlock = {
   compressedLength: number;
   buffer: ArrayBuffer;
 }
-
-// Coverage Track
-export type BinSummary = {
-  count: number;
-  mismatches: string[];
-}
-
-export type BinSummaryWithLocation = {
-  position: string;
-  count:number;
-  mismatches: string[];
-}