Stop explicitly setting ImportantForAccessibility to be true because:

    1) It's no longer necessary because Chip extends AppCompatCheckbox and TextView sets this if it's not explicitly set by the user
    2) This prevents developers from indicating that a chip should not be exposed to accessibility.

PiperOrigin-RevId: 204189419

Author: wcshi

lib/java/com/google/android/material/chip/Chip.java

@@ -174,7 +174,6 @@ public Chip(Context context, AttributeSet attrs, int defStyleAttr) {
     setChipDrawable(drawable);
     touchHelper = new ChipTouchHelper(this);
     ViewCompat.setAccessibilityDelegate(this, touchHelper);
-    ViewCompat.setImportantForAccessibility(this, ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
 
     initOutlineProvider();
     // Set deferred values