Automated rollback of commit ce7c4deda60a307bba5f0c9421738e2a375cf44e.

*** Reason for rollback ***

See bazelbuild/bazel#3172

*** Original change description ***

Add an experimental flag to Turbine to indicate to annotation processors that they are running in hjar compilation

PiperOrigin-RevId: 159585343
diff --git a/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java b/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
index 874f2de..afe20e1 100644
--- a/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
+++ b/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
@@ -147,9 +147,6 @@
       argbuilder.add("-processor");
       argbuilder.add(Joiner.on(',').join(turbineOptions.processors()));
       processorpath = asPaths(turbineOptions.processorPath());
-
-      // see b/31371210
-      argbuilder.add("-Aexperimental_turbine_hjar");
     } else {
       processorpath = ImmutableList.of();
     }