Remove extra semi colon from faiss/impl/IDSelector.h

Summary:
`-Wextra-semi` or `-Wextra-semi-stmt`

If the code compiles, this is safe to land.

Reviewed By: palmje

Differential Revision: D51995085

fbshipit-source-id: c0a4f134f9361143f337521759793d1cd86e145c

faiss/impl/IDSelector.h

@@ -140,7 +140,7 @@ struct IDSelectorAnd : IDSelector {
             : lhs(lhs), rhs(rhs) {}
     bool is_member(idx_t id) const final {
         return lhs->is_member(id) && rhs->is_member(id);
-    };
+    }
     virtual ~IDSelectorAnd() {}
 };
 
@@ -153,7 +153,7 @@ struct IDSelectorOr : IDSelector {
             : lhs(lhs), rhs(rhs) {}
     bool is_member(idx_t id) const final {
         return lhs->is_member(id) || rhs->is_member(id);
-    };
+    }
     virtual ~IDSelectorOr() {}
 };
 
@@ -166,7 +166,7 @@ struct IDSelectorXOr : IDSelector {
             : lhs(lhs), rhs(rhs) {}
     bool is_member(idx_t id) const final {
         return lhs->is_member(id) ^ rhs->is_member(id);
-    };
+    }
     virtual ~IDSelectorXOr() {}
 };
 

faiss/impl/ResidualQuantizer.h

@@ -155,4 +155,4 @@ struct ResidualQuantizer : AdditiveQuantizer {
     std::vector<float> cent_norms;
 };
 
-}; // namespace faiss
+} // namespace faiss

faiss/utils/sorting.cpp

@@ -123,7 +123,7 @@ void parallel_merge(
     }
 }
 
-}; // namespace
+} // namespace
 
 void fvec_argsort(size_t n, const float* vals, size_t* perm) {
     for (size_t i = 0; i < n; i++) {