[ObjectYAML] Remove redundant declarations (NFC)

[kazutakahirata]

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

Identified with readability-redundant-declaration.

[llvmbot]

@llvm/pr-subscribers-objectyaml

Author: Kazu Hirata (kazutakahirata)

Changes

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

Identified with readability-redundant-declaration.

---

Full diff: https://github.com/llvm/llvm-project/pull/166508.diff

1 Files Affected:

• (modified) llvm/lib/ObjectYAML/ELFYAML.cpp (-2)

diff --git a/llvm/lib/ObjectYAML/ELFYAML.cpp b/llvm/lib/ObjectYAML/ELFYAML.cpp
index e5e5fc20728e8..29f291614ffc6 100644
--- a/llvm/lib/ObjectYAML/ELFYAML.cpp
+++ b/llvm/lib/ObjectYAML/ELFYAML.cpp
@@ -37,8 +37,6 @@ unsigned Object::getMachine() const {
     return *Header.Machine;
   return llvm::ELF::EM_NONE;
 }
-
-constexpr StringRef SectionHeaderTable::TypeStr;
 } // namespace ELFYAML
 
 namespace yaml {