7025628: Remove the temporary hack added for jdk modularization in hotspot

Summary: Removed
Reviewed-by: ohair, coleenp

src/share/vm/runtime/os.cpp

@@ -1079,11 +1079,6 @@ bool os::set_boot_path(char fileSep, char pathSep) {
         "%/lib/jsse.jar:"
         "%/lib/jce.jar:"
         "%/lib/charsets.jar:"
-
-        // ## TEMPORARY hack to keep the legacy launcher working when
-        // ## only the boot module is installed (cf. j.l.ClassLoader)
-        "%/lib/modules/jdk.boot.jar:"
-
         "%/classes";
     char* sysclasspath = format_boot_path(classpath_format, home, home_len, fileSep, pathSep);
     if (sysclasspath == NULL) return false;