Remove legacy comment

dependencies.gradle

@@ -29,7 +29,7 @@ def vanniktechEmoji = "0.16.0-SNAPSHOT"
 def sentry = "6.6.0"
 def fragment = "1.5.4"
 // Testing
-def mockk = "1.13.2" // We need to use 1.12.3 to have mocking in androidTest until a new version is released: https://github.com/mockk/mockk/issues/819
+def mockk = "1.13.2"
 def espresso = "3.4.0"
 def androidxTest = "1.4.0"
 def androidxOrchestrator = "1.4.1"

matrix-sdk-android/build.gradle

@@ -204,7 +204,6 @@ dependencies {
     implementation libs.google.phonenumber
 
     testImplementation libs.tests.junit
-    // Note: version sticks to 1.9.2 due to https://github.com/mockk/mockk/issues/281
     testImplementation libs.mockk.mockk
     testImplementation libs.tests.kluent
     testImplementation libs.jetbrains.coroutinesTest