remove buildToolsVersion (#174)

* remove buildToolsVersion from templates
* Remove buildToolsVersion from examples configuration

Author: dulmandakh

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

@@ -2,7 +2,6 @@
 
 buildscript {
     ext {
-        buildToolsVersion = "29.0.2"
         minSdkVersion = 16
         compileSdkVersion = 29
         targetSdkVersion = 29

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

@@ -19,7 +19,6 @@ def safeExtGet(prop, fallback) {
 
 android {
     compileSdkVersion safeExtGet('<%- project.name %>_compileSdkVersion', 29)
-    buildToolsVersion safeExtGet('<%- project.name %>_buildToolsVersion', '29.0.2')
     defaultConfig {
         minSdkVersion safeExtGet('<%- project.name %>_minSdkVersion', 16)
         targetSdkVersion safeExtGet('<%- project.name %>_targetSdkVersion', 29)

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

@@ -19,7 +19,6 @@ def safeExtGet(prop, fallback) {
 
 android {
     compileSdkVersion safeExtGet('<%- project.name %>_compileSdkVersion', 29)
-    buildToolsVersion safeExtGet('<%- project.name %>_buildToolsVersion', '29.0.2')
     defaultConfig {
         minSdkVersion safeExtGet('<%- project.name %>_minSdkVersion', 16)
         targetSdkVersion safeExtGet('<%- project.name %>_targetSdkVersion', 29)

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

@@ -27,7 +27,6 @@ def getExtOrIntegerDefault(name) {
 
 android {
   compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
-  buildToolsVersion getExtOrDefault('buildToolsVersion')
   defaultConfig {
     minSdkVersion 16
     targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')

packages/create-react-native-library/templates/kotlin-library/android/gradle.properties

@@ -1,4 +1,3 @@
 <%- project.name %>_kotlinVersion=1.3.50
 <%- project.name %>_compileSdkVersion=29
-<%- project.name %>_buildToolsVersion=29.0.2
 <%- project.name %>_targetSdkVersion=29

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

@@ -27,7 +27,6 @@ def getExtOrIntegerDefault(name) {
 
 android {
   compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
-  buildToolsVersion getExtOrDefault('buildToolsVersion')
   defaultConfig {
     minSdkVersion 16
     targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')

packages/create-react-native-library/templates/kotlin-view-library/android/gradle.properties

@@ -1,4 +1,3 @@
 <%- project.name %>_kotlinVersion=1.3.50
 <%- project.name %>_compileSdkVersion=29
-<%- project.name %>_buildToolsVersion=29.0.2
 <%- project.name %>_targetSdkVersion=29