Coroutine: remove diffUpdateDispatcher, not used anymore

app/src/main/kotlin/io/element/android/x/di/AppModule.kt

@@ -37,10 +37,8 @@ import kotlinx.coroutines.CoroutineName
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.MainScope
-import kotlinx.coroutines.asCoroutineDispatcher
 import kotlinx.coroutines.plus
 import java.io.File
-import java.util.concurrent.Executors
 
 @Module
 @ContributesTo(AppScope::class)
@@ -99,7 +97,6 @@ object AppModule {
             io = Dispatchers.IO,
             computation = Dispatchers.Default,
             main = Dispatchers.Main,
-            diffUpdateDispatcher = Executors.newSingleThreadExecutor().asCoroutineDispatcher()
         )
     }
 

libraries/core/src/main/kotlin/io/element/android/libraries/core/coroutine/CoroutineDispatchers.kt

@@ -22,5 +22,4 @@ data class CoroutineDispatchers(
     val io: CoroutineDispatcher,
     val computation: CoroutineDispatcher,
     val main: CoroutineDispatcher,
-    val diffUpdateDispatcher: CoroutineDispatcher,
 )

samples/minimal/src/main/kotlin/io/element/android/samples/minimal/Singleton.kt

@@ -22,10 +22,8 @@ import io.element.android.libraries.matrix.api.tracing.TracingConfigurations
 import kotlinx.coroutines.CoroutineName
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.MainScope
-import kotlinx.coroutines.asCoroutineDispatcher
 import kotlinx.coroutines.plus
 import timber.log.Timber
-import java.util.concurrent.Executors
 
 object Singleton {
 
@@ -39,6 +37,5 @@ object Singleton {
         io = Dispatchers.IO,
         computation = Dispatchers.Default,
         main = Dispatchers.Main,
-        diffUpdateDispatcher = Executors.newSingleThreadExecutor().asCoroutineDispatcher(),
     )
 }

tests/testutils/src/main/kotlin/io/element/android/tests/testutils/TestCoroutineDispatchers.kt

@@ -37,12 +37,10 @@ fun TestScope.testCoroutineDispatchers(
         io = UnconfinedTestDispatcher(testScheduler),
         computation = UnconfinedTestDispatcher(testScheduler),
         main = UnconfinedTestDispatcher(testScheduler),
-        diffUpdateDispatcher = UnconfinedTestDispatcher(testScheduler),
     )
     false -> CoroutineDispatchers(
         io = StandardTestDispatcher(testScheduler),
         computation = StandardTestDispatcher(testScheduler),
         main = StandardTestDispatcher(testScheduler),
-        diffUpdateDispatcher = StandardTestDispatcher(testScheduler),
     )
 }