Use androidx transaction in databases

Replace the redundant SQLiteDatabase.execute() extension with the AndroidX SQLiteDatabase.transaction() extension, which does the same thing.

app/src/main/java/org/oxycblt/auxio/database/BlacklistDatabase.kt

@@ -4,6 +4,7 @@ import android.content.ContentValues
 import android.content.Context
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
+import androidx.core.database.sqlite.transaction
 import org.oxycblt.auxio.logD
 
 /**
@@ -33,7 +34,7 @@ class BlacklistDatabase(context: Context) : SQLiteOpenHelper(context, DB_NAME, n
     fun writePaths(paths: List<String>) {
         assertBackgroundThread()
 
-        writableDatabase.execute {
+        writableDatabase.transaction {
             delete(TABLE_NAME, null, null)
 
             logD("Deleted paths db")

app/src/main/java/org/oxycblt/auxio/database/DatabaseUtils.kt

@@ -6,29 +6,6 @@ import android.os.Looper
 import org.oxycblt.auxio.logE
 import java.lang.Exception
 
-/**
- * Shortcut for running a series of [commands] on an [SQLiteDatabase].
- * @return true if the transaction was successful, false if not.
- */
-fun SQLiteDatabase.execute(commands: SQLiteDatabase.() -> Unit): Boolean {
-    beginTransaction()
-
-    val success = try {
-        commands()
-        setTransactionSuccessful()
-        true
-    } catch (e: Exception) {
-        logE("An error occurred when trying to execute commands.")
-        logE(e.stackTraceToString())
-
-        false
-    }
-
-    endTransaction()
-
-    return success
-}
-
 /**
  * Shortcut for querying all items in a database and running [block] with the cursor returned.
  * Will not run if the cursor is null.

app/src/main/java/org/oxycblt/auxio/database/PlaybackStateDatabase.kt

@@ -5,6 +5,7 @@ import android.content.Context
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
 import androidx.core.database.getStringOrNull
+import androidx.core.database.sqlite.transaction
 import org.oxycblt.auxio.logD
 
 /**
@@ -85,7 +86,7 @@ class PlaybackStateDatabase(context: Context) :
     fun writeState(state: PlaybackState) {
         assertBackgroundThread()
 
-        writableDatabase.execute {
+        writableDatabase.transaction {
             delete(TABLE_NAME_STATE, null, null)
 
             this@PlaybackStateDatabase.logD("Wiped state db.")
@@ -159,7 +160,7 @@ class PlaybackStateDatabase(context: Context) :
 
         val database = writableDatabase
 
-        database.execute {
+        database.transaction {
             delete(TABLE_NAME_QUEUE, null, null)
         }
 
@@ -171,7 +172,7 @@ class PlaybackStateDatabase(context: Context) :
         while (position < queueItems.size) {
             var i = position
 
-            database.execute {
+            database.transaction {
                 while (i < queueItems.size) {
                     val item = queueItems[i]
                     i++