cut unnecessary function-exports in StaticMeta

Summary: These uses of `FOLLY_EXPORT` are vestigial from when these member functions had their own local `thread_local`s. But now that is wrapped up in member function `getLocalCache`, so all other uses no longer need it.

Differential Revision: D58916971

fbshipit-source-id: 9e0a3db2485baee203675e75eeadb2eebe76a5f2

folly/detail/ThreadLocalDetail.h

@@ -562,7 +562,7 @@ struct FOLLY_EXPORT StaticMeta final : StaticMetaBase {
     return instance;
   }
 
-  FOLLY_EXPORT FOLLY_ALWAYS_INLINE static ElementWrapper& get(EntryID* ent) {
+  FOLLY_ALWAYS_INLINE static ElementWrapper& get(EntryID* ent) {
     // Eliminate as many branches and as much extra code as possible in the
     // cached fast path, leaving only one branch here and one indirection
     // below.
@@ -582,8 +582,7 @@ struct FOLLY_EXPORT StaticMeta final : StaticMetaBase {
    * StaticMetaBase::allId2ThreadEntrySets_ updated with ThreadEntry* whenever a
    * ThreadLocal is set/released.
    */
-  FOLLY_EXPORT FOLLY_ALWAYS_INLINE static ThreadEntry* getThreadEntry(
-      EntryID* ent) {
+  FOLLY_ALWAYS_INLINE static ThreadEntry* getThreadEntry(EntryID* ent) {
     // Eliminate as many branches and as much extra code as possible in the
     // cached fast path, leaving only one branch here and one indirection below.
     uint32_t id = ent->getOrInvalid();