[yaml2obj] - Remove excessive variable. NFC.

`auto &Strtab` was used only once.

llvm-svn: 359300
diff --git a/llvm/tools/yaml2obj/yaml2elf.cpp b/llvm/tools/yaml2obj/yaml2elf.cpp
index a35a980..bb5ca4c 100644
--- a/llvm/tools/yaml2obj/yaml2elf.cpp
+++ b/llvm/tools/yaml2obj/yaml2elf.cpp
@@ -325,9 +325,9 @@
   SHeader.sh_name = DotShStrtab.getOffset(IsStatic ? ".symtab" : ".dynsym");
   SHeader.sh_type = IsStatic ? ELF::SHT_SYMTAB : ELF::SHT_DYNSYM;
   SHeader.sh_link = IsStatic ? getDotStrTabSecNo() : getDotDynStrSecNo();
-  const auto &Symbols = IsStatic ? Doc.Symbols : Doc.DynamicSymbols;
-  auto &Strtab = IsStatic ? DotStrtab : DotDynstr;
+
   // One greater than symbol table index of the last local symbol.
+  const auto &Symbols = IsStatic ? Doc.Symbols : Doc.DynamicSymbols;
   SHeader.sh_info = findFirstNonGlobal(Symbols) + 1;
   SHeader.sh_entsize = sizeof(Elf_Sym);
   SHeader.sh_addralign = 8;
@@ -352,7 +352,7 @@
     Syms.push_back(Sym);
   }
 
-  addSymbols(Symbols, Syms, Strtab);
+  addSymbols(Symbols, Syms, IsStatic ? DotStrtab : DotDynstr);
 
   writeArrayData(
       CBA.getOSAndAlignedOffset(SHeader.sh_offset, SHeader.sh_addralign),