Remove noexcept annotations for gcc

Change-Id: Ib9c297c5718b418530d76d6def19c432db1180fe
Reviewed-on: https://chromium-review.googlesource.com/1219632Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55830}

src/base/compiler-specific.h

@@ -94,7 +94,7 @@
 
 // Allowing the use of noexcept by removing the keyword on older compilers that
 // do not support adding noexcept to default members.
-#if ((V8_GNUC_PREREQ(4, 9, 0) && !defined(V8_TARGET_ARCH_MIPS) &&        \
+#if ((!defined(V8_CC_GNU) && !defined(V8_TARGET_ARCH_MIPS) &&        \
       !defined(V8_TARGET_ARCH_MIPS64) && !defined(V8_TARGET_ARCH_PPC) && \
       !defined(V8_TARGET_ARCH_PPC64)) ||                                 \
      (defined(__clang__) && __cplusplus > 201300L))