diff --git a/testing-modules/groovy-spock/src/main/java/mocks/CharacterCalculator.java b/testing-modules/groovy-spock/src/main/java/mocks/CharacterCalculator.java
deleted file mode 100644
index 92a0cabdcb..0000000000
--- a/testing-modules/groovy-spock/src/main/java/mocks/CharacterCalculator.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package mocks;
-
-public class CharacterCalculator {
-
-    public int countCharacterInString(String value, char characterToCount) {
-        int result = 0;
-        for (int i = 0; i < value.length(); i++) {
-            if (value.charAt(i) == characterToCount) {
-                result++;
-            }
-        }
-        return result;
-    }
-
-}