remove android gradle plugin

.gitignore

@@ -8,7 +8,7 @@
 node_modules/
 npm-debug.log
 yarn-error.log
-  
+
 
 # Xcode
 #
@@ -29,7 +29,7 @@ DerivedData
 *.ipa
 *.xcuserstate
 project.xcworkspace
-      
+
 
 # Android/IntelliJ
 #
@@ -45,4 +45,5 @@ buck-out/
 *.keystore
 
 # Editor config
-.vscode
+.vscode 
+

android/build.gradle

@@ -1,21 +1,5 @@
-
-buildscript {
-    repositories {
-        google()
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
-    }
-}
-
-def getExtOrDefault(name) {
-  return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties['RNAsyncStorage_' + name]
-}
-
-def getExtOrIntegerDefault(name) {
-  return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties['RNAsyncStorage_' + name]).toInteger()
+def getExtOrDefault(name, defaultValue) {
+  return rootProject.ext.has(name) ? rootProject.ext.get(name) : defaultValue
 }
 
 // AsyncStorage has default size of 6MB.
@@ -37,19 +21,19 @@ def useDedicatedExecutor = rootProject.hasProperty('AsyncStorage_dedicatedExecut
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
-    buildToolsVersion getExtOrDefault('buildToolsVersion')
+    compileSdkVersion getExtOrDefault('compileSdkVersion', 28)
 
     defaultConfig {
-        minSdkVersion getExtOrIntegerDefault('minSdkVersion')
-        targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')
+        minSdkVersion getExtOrDefault('minSdkVersion', 16)
+        targetSdkVersion getExtOrDefault('targetSdkVersion', 28)
 
         buildConfigField "Long", "AsyncStorage_db_size", "${dbSizeInMB}L"
         buildConfigField("boolean", "AsyncStorage_useDedicatedExecutor", "${useDedicatedExecutor}")
     }
 }
 
 repositories {
+    google()
     mavenCentral()
 }