Fix broken framework documentation

Various issues here, but the most recurring one is referencing SystemApi
from public javadoc. Remove or rewrite such references.

Also common is trying to @link IntDefs. Usually this is not necessary,
as the presence of IntDef in the @param/@return auto-generates relevant
documentation.

Bug: 303184203
Test: m docs
Change-Id: Ie59e61881c45c73fbbe08250493bd35eca268ef6
diff --git a/graphics/java/android/view/PixelCopy.java b/graphics/java/android/view/PixelCopy.java
index 0e198d5..e6de597 100644
--- a/graphics/java/android/view/PixelCopy.java
+++ b/graphics/java/android/view/PixelCopy.java
@@ -322,7 +322,7 @@
         }
 
         /**
-         * Returns the {@link CopyResultStatus} of the copy request.
+         * Returns the status of the copy request.
          */
         public @CopyResultStatus int getStatus() {
             return mStatus;