Drop the comments from the Enter key handling

Review feedback: the callback name and the device-id check read on their
own, and the test names carry the soft versus physical keyboard rule.

libraries/textcomposer/impl/src/main/kotlin/io/element/android/libraries/textcomposer/components/markdown/MarkdownEditText.kt

@@ -19,10 +19,6 @@ internal class MarkdownEditText(
 ) : AppCompatEditText(context) {
     var onSelectionChangeListener: ((Int, Int) -> Unit)? = null
 
-    /**
-     * Invoked when Enter is pressed on a physical keyboard without Shift. Return true to consume the
-     * key, i.e. to send instead of inserting a newline.
-     */
     var onEnterKeyListener: (() -> Boolean)? = null
 
     private var isModifyingText = false
@@ -30,13 +26,11 @@ internal class MarkdownEditText(
     override fun dispatchKeyEvent(event: KeyEvent): Boolean {
         if (event.keyCode == KeyEvent.KEYCODE_ENTER &&
             !event.isShiftPressed &&
-            // A soft keyboard must keep inserting a newline, only a real one sends.
             event.deviceId != KeyCharacterMap.VIRTUAL_KEYBOARD
         ) {
             val listener = onEnterKeyListener
             if (listener != null) {
                 return when (event.action) {
-                    // Consume the release too, so no newline leaks out on key repeat.
                     KeyEvent.ACTION_UP -> true
                     KeyEvent.ACTION_DOWN -> if (event.repeatCount == 0) listener() else true
                     else -> super.dispatchKeyEvent(event)

libraries/textcomposer/impl/src/main/kotlin/io/element/android/libraries/textcomposer/components/markdown/MarkdownTextInput.kt

@@ -133,7 +133,6 @@ fun MarkdownTextInput(
         update = { editText ->
             editText.contentDescription = placeholder
             editText.applyStyleInCompose(richTextEditorStyle)
-            // Set here rather than in the factory, which runs once and would capture a stale lambda.
             editText.onEnterKeyListener = onSendMessage?.let { send ->
                 {
                     send()

libraries/textcomposer/impl/src/test/kotlin/io/element/android/libraries/textcomposer/impl/components/markdown/MarkdownTextInputTest.kt

@@ -233,7 +233,6 @@ class MarkdownTextInputTest : RobolectricTest() {
     }
 
     private companion object {
-        // Any device id other than KeyCharacterMap.VIRTUAL_KEYBOARD is a real keyboard.
         const val PHYSICAL_KEYBOARD_DEVICE_ID = 1
     }
 }