syscalls/munlockall02: remove deprecated test

ISSUE:
This TCONF message: "Some distros... support
non-superuser munlockall calls."
has unnecessarily shown for years.

REASON：
The test is expecting EPERM error when calling munlockall with user
nobody. However, the unprivileged calling of munlockall has been allowed at least since v2.6.

---
 runtest/ltplite                               |   1 -
 runtest/stress.part3                          |   1 -
 runtest/syscalls                              |   1 -
 .../kernel/syscalls/munlockall/.gitignore     |   1 -
 .../kernel/syscalls/munlockall/munlockall02.c | 157 ------------------
 5 files changed, 161 deletions(-)
 delete mode 100644 testcases/kernel/syscalls/munlockall/munlockall02.c

index 9ca6c421f..a3d4f54e0 100644
@@ -510,7 +510,6 @@ munlock01 munlock01
 munlock02 munlock02
 
 munlockall01 munlockall01
-munlockall02 munlockall02
 
 munmap01 munmap01
 munmap02 munmap02

index ec18dcf73..f9eed15ed 100644
@@ -427,7 +427,6 @@ munlock01 munlock01
 munlock02 munlock02
 
 munlockall01 munlockall01
-munlockall02 munlockall02
 
 munmap01 munmap01
 munmap02 munmap02

index ccc3eff59..eb1de2d30 100644
@@ -730,7 +730,6 @@ munlock01 munlock01
 munlock02 munlock02
 
 munlockall01 munlockall01
-munlockall02 munlockall02
 
 munmap01 munmap01
 munmap02 munmap02

index 5fb852410..b45b4ad06 100644
@@ -1,2 +1 @@
 /munlockall01
-/munlockall02

2.17.1

----- Original Message -----

Pushed.

Thanks,
Jan