Remove GradleVersion

It's not used
Bug: N/A
Test: N/A

Change-Id: I669cb8ced7b13c498298403ba50fe11791a7cf18
diff --git a/wizard/template-plugin/src/com/android/tools/idea/wizard/template/TemplateHelpers.kt b/wizard/template-plugin/src/com/android/tools/idea/wizard/template/TemplateHelpers.kt
index f7d11ac..b9fd203 100644
--- a/wizard/template-plugin/src/com/android/tools/idea/wizard/template/TemplateHelpers.kt
+++ b/wizard/template-plugin/src/com/android/tools/idea/wizard/template/TemplateHelpers.kt
@@ -20,16 +20,6 @@
 import java.io.File
 import java.net.URL
 
-data class GradleVersion(val major: Int, val minor: Int, val micro: Int) {
-  operator fun compareTo(other: GradleVersion) = when {
-    this == other -> 0
-    this.major > other.major -> 1
-    this.minor > other.minor -> 1
-    this.micro > other.micro -> 1
-    else -> -1
-  }
-}
-
 /** Converts an Activity class name into a suitable layout name. */
 fun activityToLayout(activityName: String, layoutName: String? = null): String =
   if (activityName.isNotEmpty())