Smaller compile fixes for the new opaque serialization.

Also remove the non-existing clone function for EntrypyVals - which now
can just use serialization :)

src/probabilistic/BitVector.cc

@@ -543,7 +543,7 @@ std::unique_ptr<BitVector> BitVector::Unserialize(const broker::data& data)
 		bv->bits.push_back(*x);
 		}
 
-	return std::move(bv);
+	return bv;
 	}
 
 BitVector::size_type BitVector::lowest_bit(block_type block)

src/probabilistic/BloomFilter.cc

@@ -70,7 +70,7 @@ std::unique_ptr<BloomFilter> BloomFilter::Unserialize(const broker::data& data)
 		return nullptr;
 
 	bf->hasher = hasher_.release();
-	return std::move(bf);
+	return bf;
 	}
 
 size_t BasicBloomFilter::M(double fp, size_t capacity)

src/probabilistic/CardinalityCounter.cc

@@ -234,7 +234,7 @@ std::unique_ptr<CardinalityCounter> CardinalityCounter::Unserialize(const broker
 		cc->buckets.push_back(*x);
 		}
 
-	return std::move(cc);
+	return cc;
 	}
 
 /**

src/probabilistic/CounterVector.cc

@@ -179,7 +179,7 @@ std::unique_ptr<CounterVector> CounterVector::Unserialize(const broker::data& da
 	auto cv = std::unique_ptr<CounterVector>(new CounterVector());
 	cv->width = *width;
 	cv->bits = bits.release();
-	return std::move(cv);
+	return cv;
 	}
 
 

src/probabilistic/Hasher.cc

@@ -84,7 +84,7 @@ std::unique_ptr<Hasher> Hasher::Unserialize(const broker::data& data)
 	// their own. They reconstruct all their information from their
 	// constructors' arguments.
 
-	return std::move(hasher);
+	return hasher;
 	}
 
 UHF::UHF()