Remove another OPENSSL_EXPORT in an enum

bug: chromium:1322914
Change-Id: I23b49ed6a9a739cddf17b0b4d9e26c74b7cb3de5
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/62785
Auto-Submit: Bob Beck <bbe@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
diff --git a/pki/fillins/path_service.h b/pki/fillins/path_service.h
index 9763d3b..7d89034 100644
--- a/pki/fillins/path_service.h
+++ b/pki/fillins/path_service.h
@@ -26,7 +26,7 @@
   std::string path_;
 };
 
-enum OPENSSL_EXPORT PathKey {
+enum PathKey {
   DIR_SOURCE_ROOT = 0,
 };