diff --git a/Source/Core/Common/Compiler.h b/Source/Core/Common/Compiler.h
index 0cd3836330..2b709cfe6f 100644
--- a/Source/Core/Common/Compiler.h
+++ b/Source/Core/Common/Compiler.h
@@ -4,15 +4,6 @@
 
 #pragma once
 
-// TODO: Replace this with [[maybe_unused]] directly when GCC 7 and clang 3.9
-//       are hard requirements.
-#if defined(__GNUC__) || __clang__
-// Disable "unused function" warnings for the ones manually marked as such.
-#define DOLPHIN_UNUSED __attribute__((unused))
-#else
-#define DOLPHIN_UNUSED [[maybe_unused]]
-#endif
-
 #ifdef _WIN32
 #define DOLPHIN_FORCE_INLINE __forceinline
 #else
diff --git a/Source/Core/Common/Crypto/ec.cpp b/Source/Core/Common/Crypto/ec.cpp
index 098d3e30c6..86ad2cccca 100644
--- a/Source/Core/Common/Crypto/ec.cpp
+++ b/Source/Core/Common/Crypto/ec.cpp
@@ -173,7 +173,7 @@ private:
 };
 
 // y**2 + x*y = x**3 + x + b
-DOLPHIN_UNUSED static const u8 ec_b[30] = {
+[[maybe_unused]] static const u8 ec_b[30] = {
     0x00, 0x66, 0x64, 0x7e, 0xde, 0x6c, 0x33, 0x2c, 0x7f, 0x8c, 0x09, 0x23, 0xbb, 0x58, 0x21,
     0x3b, 0x33, 0x3b, 0x20, 0xe9, 0xce, 0x42, 0x81, 0xfe, 0x11, 0x5f, 0x7d, 0x8f, 0x90, 0xad};