remove pragma once from .cpp files (#1982)

Signed-off-by: Nzaqwsxqwer111 <2536173042@qq.com>

core/src/query/BinaryQuery.cpp

@@ -9,8 +9,6 @@
 // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 // or implied. See the License for the specific language governing permissions and limitations under the License.
 
-#pragma once
-
 #include <memory>
 #include <string>
 #include <utility>

core/src/segment/Attr.cpp

@@ -15,8 +15,6 @@
 // specific language governing permissions and limitations
 // under the License.
 
-#pragma once
-
 #include <algorithm>
 #include <chrono>
 #include <cstring>