fix: self code review

Author: szymonrybczak

packages/create-react-native-library/templates/native-common/android/build.gradle

@@ -1,5 +1,4 @@
 buildscript {
-  // Buildscript is evaluated before everything else so we can't use getExtOrDefault
   ext.getExtOrDefault = {name ->
     return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties['<%- project.name -%>_' + name]
   }
@@ -10,7 +9,7 @@ buildscript {
   }
 
   dependencies {
-    classpath "com.android.tools.build:gradle:${getExtOrDefault('gradleVersion')}"
+    classpath "com.android.tools.build:gradle:8.7.2"
     // noinspection DifferentKotlinGradleVersion
     classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${getExtOrDefault('kotlinVersion')}"
   }
@@ -34,10 +33,6 @@ if (isNewArchitectureEnabled()) {
   apply plugin: "com.facebook.react"
 }
 
-def getExtOrDefault(name) {
-  return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties["<%- project.name -%>_" + name]
-}
-
 def getExtOrIntegerDefault(name) {
   return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties["<%- project.name -%>_" + name]).toInteger()
 }