8175079: Lazy initialization of ImageReader breaks rmid

Reviewed-by: alanb

jdk/src/java.base/share/classes/java/lang/System.java

@@ -1945,9 +1945,6 @@ public final class System {
         // set security manager
         String cn = System.getProperty("java.security.manager");
         if (cn != null) {
-            // ensure image reader for java.base is initialized before security manager
-            Object.class.getResource("module-info.class");
-
             if (cn.isEmpty() || "default".equals(cn)) {
                 System.setSecurityManager(new SecurityManager());
             } else {

jdk/src/java.base/share/classes/jdk/internal/module/ModuleBootstrap.java

@@ -115,12 +115,7 @@ public final class ModuleBootstrap {
         long t0 = System.nanoTime();
 
         // system modules (may be patched)
-        ModuleFinder systemModules;
-        if (SystemModules.MODULE_NAMES.length > 0) {
-            systemModules = SystemModuleFinder.getInstance();
-        } else {
-            systemModules = ModuleFinder.ofSystem();
-        }
+        ModuleFinder systemModules = ModuleFinder.ofSystem();
 
         PerfCounters.systemModulesTime.addElapsedTimeFrom(t0);