treewide: correct stale comments

- MuxRecorder claimed minSdk 35; it is 31.
- Adb claimed API 34 is the current Android max, next to
  compileSdk 35.
- Server claimed the openAbstract budget is wall-clock bounded below
  the e2e deadline; the deadline is per stream, so the worst case is
  not. Describe what actually holds instead.
- Pixhash contradicted itself about java.desktop availability.

1 files changed, 3 insertions, 3 deletions

diff --git a/test-rig/Pixhash.java b/test-rig/Pixhash.java
index 47ab8b8..b35a560 100644
--- a/test-rig/Pixhash.java
+++ b/test-rig/Pixhash.java
@@ -5,9 +5,9 @@
 //   java test-rig/Pixhash.java <png>            # default min=5%
 //   java test-rig/Pixhash.java <png> --min 1
 //
-// We avoid AWT's BufferedImage because some headless JDKs ship without
-// it; ImageIO is in java.desktop which IS present in the openjdk-17-jdk
-// package in our image, so it's fine.
+// ImageIO/BufferedImage live in java.desktop, which the image's
+// openjdk-17-jdk-headless package does ship (headless only disables
+// display/input, not imaging) - no extra dependency needed.
 
 import java.io.File;
 import java.io.IOException;