Fixed a compilation error

openmmapi/include/openmm/internal/CMMotionRemoverImpl.h

@@ -52,9 +52,7 @@ public:
     void updateContextState(ContextImpl& context);
     double calcForcesAndEnergy(ContextImpl& context, bool includeForces, bool includeEnergy) {
         // This force doesn't apply forces to particles.
-    }
-    double calcEnergy(ContextImpl& context) {
-        return 0.0; // This force doesn't contribute to the potential energy.
+        return 0.0;
     }
     std::map<std::string, double> getDefaultParameters() {
         return std::map<std::string, double>(); // This force doesn't define any parameters.

openmmapi/include/openmm/internal/MonteCarloBarostatImpl.h

@@ -54,9 +54,7 @@ public:
     void updateContextState(ContextImpl& context);
     double calcForcesAndEnergy(ContextImpl& context, bool includeForces, bool includeEnergy) {
         // This force doesn't apply forces to particles.
-    }
-    double calcEnergy(ContextImpl& context) {
-        return 0.0; // This force doesn't contribute to the potential energy.
+        return 0.0;
     }
     std::map<std::string, double> getDefaultParameters();
     std::vector<std::string> getKernelNames();