8016019: Remove setProtectionDomain0 and JVM_SetProtectionDomain in JDK

Summary: setProtectionDomain0 and JVM_SetProtectionDomain are unused since at least 1.5.  This is the JDK side of a changeset to remove it.
Reviewed-by: alanb

src/share/classes/java/lang/Class.java

@@ -2212,14 +2212,6 @@ public final class Class<T> implements java.io.Serializable,
      */
     private native java.security.ProtectionDomain getProtectionDomain0();
 
-
-    /**
-     * Set the ProtectionDomain for this class. Called by
-     * ClassLoader.defineClass.
-     */
-    native void setProtectionDomain0(java.security.ProtectionDomain pd);
-
-
     /*
      * Return the Virtual Machine's Class object for the named
      * primitive type.

src/share/javavm/export/jvm.h

@@ -441,9 +441,6 @@ JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 JNIEXPORT jobject JNICALL
 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 
-JNIEXPORT void JNICALL
-JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
-
 JNIEXPORT jboolean JNICALL
 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 

src/share/native/java/lang/Class.c

@@ -68,7 +68,6 @@ static JNINativeMethod methods[] = {
     {"getDeclaredMethods0","(Z)[" MHD,      (void *)&JVM_GetClassDeclaredMethods},
     {"getDeclaredConstructors0","(Z)[" CTR, (void *)&JVM_GetClassDeclaredConstructors},
     {"getProtectionDomain0", "()" PD,       (void *)&JVM_GetProtectionDomain},
-    {"setProtectionDomain0", "(" PD ")V",   (void *)&JVM_SetProtectionDomain},
     {"getDeclaredClasses0",  "()[" CLS,      (void *)&JVM_GetDeclaredClasses},
     {"getDeclaringClass",   "()" CLS,      (void *)&JVM_GetDeclaringClass},
     {"getGenericSignature", "()" STR,       (void *)&JVM_GetClassSignature},