Remove a 'static' specifier from an 'inline' function in a header file.

This issue was caught by the new '-Winternal-linkage-in-inline' warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/Linkage.h b/include/clang/Basic/Linkage.h
index 09a5a0b..6822b44 100644
--- a/include/clang/Basic/Linkage.h
+++ b/include/clang/Basic/Linkage.h
@@ -59,7 +59,7 @@
 }
 
 /// \brief Compute the minimum linkage given two linages.
-static inline Linkage minLinkage(Linkage L1, Linkage L2) {
+inline Linkage minLinkage(Linkage L1, Linkage L2) {
   return L1 < L2? L1 : L2;
 }