8006691: Remove jvm_version_info->is_kernel_jvm field

Summary: Remove is_kernel_jvm field in jvm_version_info structure, as kernel VM has been deprecated
Reviewed-by: mchung

src/share/javavm/export/jvm.h

@@ -1401,8 +1401,7 @@ typedef struct {
      * the new bit is also added in the main/baseline.
      */
     unsigned int is_attach_supported : 1;
-    unsigned int is_kernel_jvm : 1;
-    unsigned int : 30;
+    unsigned int : 31;
     unsigned int : 32;
     unsigned int : 32;
 } jvm_version_info;