Remove some buildscript blocks (#905)

Author: runningcode

examples/android-gradle-kts/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-  alias(libs.plugins.androidApplication) version BuildPluginsVersion.AGP
+  id("com.android.application")
   id("io.sentry.android.gradle")
 }
 

examples/android-gradle/build.gradle

@@ -1,18 +1,8 @@
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath Libs.AGP
-        classpath "io.sentry:sentry-android-gradle-plugin"
-    }
+plugins {
+  id("com.android.application")
+  id("io.sentry.android.gradle")
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'io.sentry.android.gradle'
-
 android {
     compileSdk = LibsVersion.SDK_VERSION
     defaultConfig {

examples/android-ndk/build.gradle

@@ -1,18 +1,8 @@
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath Libs.AGP
-        classpath "io.sentry:sentry-android-gradle-plugin"
-    }
+plugins {
+    id("com.android.application")
+    id("io.sentry.android.gradle")
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'io.sentry.android.gradle'
-
 android {
     compileSdk = LibsVersion.SDK_VERSION
     ndkVersion = "24.0.8215888"
@@ -37,7 +27,6 @@ android {
 }
 
 if (System.getenv("AUTO_UPLOAD")) {
-    apply plugin: 'io.sentry.android.gradle'
     sentry {
         autoUploadProguardMapping = false
         uploadNativeSymbols = true