[glibc] Remove remnant reference to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA

[glibc] Remove remnant reference to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA

[Fangrui Song]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=686216945a7873237bf892bbe38a2eef23aadeba

commit 686216945a7873237bf892bbe38a2eef23aadeba
Author: Fangrui Song <maskray@google.com>
Date:   Wed Jun 15 13:02:17 2022 -0700

    Remove remnant reference to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA
    
    This fixes nios2 build after commit de38b2a343e6d64b95c50004943d6107a9e380d0.

Diff:
---
 sysdeps/i386/dl-machine.h  | 5 +----
 sysdeps/nios2/dl-machine.h | 3 +--
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index a8ee594ff4..56a189fda2 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -185,10 +185,7 @@ _dl_start_user:\n\
    TLS variable, so undefined references should not be allowed to
    define the value.
    ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
-   of the main executable's symbols, as for a COPY reloc.
-   ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA iff TYPE describes relocation may
-   against protected data whose address be external due to copy relocation.
- */
+   of the main executable's symbols, as for a COPY reloc.  */
 # define elf_machine_type_class(type) \
   ((((type) == R_386_JMP_SLOT || (type) == R_386_TLS_DTPMOD32		      \
      || (type) == R_386_TLS_DTPOFF32 || (type) == R_386_TLS_TPOFF32	      \
diff --git a/sysdeps/nios2/dl-machine.h b/sysdeps/nios2/dl-machine.h
index 9a35cf4160..9d1c241792 100644
--- a/sysdeps/nios2/dl-machine.h
+++ b/sysdeps/nios2/dl-machine.h
@@ -166,8 +166,7 @@ _start:\n\
      || (type) == R_NIOS2_TLS_DTPMOD				\
      || (type) == R_NIOS2_TLS_DTPREL				\
      || (type) == R_NIOS2_TLS_TPREL) * ELF_RTYPE_CLASS_PLT)	\
-   | (((type) == R_NIOS2_COPY) * ELF_RTYPE_CLASS_COPY)		\
-   | (((type) == R_NIOS2_GLOB_DAT) * ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA))
+   | (((type) == R_NIOS2_COPY) * ELF_RTYPE_CLASS_COPY))
 
 /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
 #define ELF_MACHINE_JMP_SLOT  R_NIOS2_JUMP_SLOT