diff --git a/src/utils/escape-regexp-input.ts b/src/utils/escape-regexp-input.ts
deleted file mode 100644
index 25924fc..0000000
--- a/src/utils/escape-regexp-input.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-// https://stackoverflow.com/a/6969486
-export function escapeRegExpInput(regExpInput: string) {
-  return regExpInput.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
-}