Revert D22027490: Specialize F14Table default constructor to avoid reserve() instantiation

Differential Revision:
D22027490

Original commit changeset: 964d9fa19ca9

fbshipit-source-id: 2c92ea47c64450cb031be4a6df3c3be4901500b7

folly/container/F14Map.h

@@ -105,7 +105,8 @@ class F14BasicMap {
  public:
   //// PUBLIC - Member functions
 
-  F14BasicMap() noexcept(Policy::kDefaultConstructIsNoexcept) : table_{} {}
+  F14BasicMap() noexcept(Policy::kDefaultConstructIsNoexcept)
+      : F14BasicMap(0) {}
 
   explicit F14BasicMap(
       std::size_t initialCapacity,

folly/container/F14Set.h

@@ -99,7 +99,8 @@ class F14BasicSet {
  public:
   //// PUBLIC - Member functions
 
-  F14BasicSet() noexcept(Policy::kDefaultConstructIsNoexcept) : table_{} {}
+  F14BasicSet() noexcept(Policy::kDefaultConstructIsNoexcept)
+      : F14BasicSet(0) {}
 
   explicit F14BasicSet(
       std::size_t initialCapacity,

folly/container/detail/F14Table.h

@@ -938,11 +938,6 @@ class F14Table : public Policy {
   }
 
  public:
-  // Equivalent to F14Table(0, ...), but implemented separately to avoid forcing
-  // a reserve() instantiation in the common case.
-  F14Table() noexcept(Policy::kDefaultConstructIsNoexcept)
-      : Policy{Hasher{}, KeyEqual{}, Alloc{}} {}
-
   F14Table(
       std::size_t initialCapacity,
       Hasher const& hasher,