fixup builds under SDK 30

Makefile

@@ -9,7 +9,7 @@ debug: build
 	adb install -r ./app/build/outputs/apk/debug/app-debug.apk
 
 build:
-	ssh qemu '. .bash_aliases && cd /hostfs/vanilla && ./gradlew build -x lintVitalRelease -x lint -x :app:transformClassesWithAndroidGradleClassShrinkerForRelease'
+	ssh qemu '. .bash_aliases && cd /hostfs/vanilla && ./gradlew build -x lintVitalRelease -x lint'
 
 release: clean
 	ssh qemu '. .bash_aliases && cd /hostfs/vanilla && ./gradlew assembleRelease && cd ./app/build/outputs/apk/release && zipalign -v -p 4 app-release-unsigned.apk aligned.apk && /home/adrian/Android/build-tools/27.0.3/apksigner sign -ks /hostfs/.android.keystore --out final.apk aligned.apk'

app/build.gradle

@@ -17,8 +17,6 @@ android {
     buildTypes {
         release {
             minifyEnabled true
-            useProguard false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
         }
     }
 

build.gradle

@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:4.0.0'
     }
 }
 allprojects {

gradle/wrapper/gradle-wrapper.properties

@@ -3,5 +3,5 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.8.1-all.zip
-distributionSha256Sum=ce1645ff129d11aad62dab70d63426fdce6cfd646fa309dc5dc5255dd03c7c11
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionSha256Sum=10065868c78f1207afb3a92176f99a37d753a513dff453abb6b5cceda4058cda