build.gradle: don't hardcode the Gradle version here (#2213)

stephengold · web-flow · commit 88d94b751382 · 2024-03-08T14:16:04.000+02:00
diff --git a/build.gradle b/build.gradle
@@ -282,11 +282,6 @@ if (skipPrebuildLibraries != "true" && buildNativeProjects != "true") {
 //    }
 //}
 
-wrapper {
-    gradleVersion = '7.6.4'
-}
-
-
 retrolambda {
   javaVersion JavaVersion.VERSION_1_7
   incremental true
