remove labels

docs/source/FluidEquations.rst

@@ -6,18 +6,15 @@ Below are the governing equations for the fluid:
 Conservation of fluid mass:
 
 .. math:: \frac{\partial (\varepsilon_g \rho_g)}{\partial t} + \nabla \cdot (\varepsilon_g \rho_g U_g)  = 0
-  :label: eqn::mass_cons
 
 Conservation of fluid momentum:
 
 .. math:: \frac{ \partial (\varepsilon_g \rho_g U)}{\partial t} + \nabla \cdot (\varepsilon_g \rho_g U_g U_g) + \varepsilon_g \nabla p_g = \nabla \cdot \tau + {\bf g} 
            + \sum_{part} \beta (V_{part} - U_g)
-  :label: eqn::mom_cons
 
 Conservation of fluid volume:
 
 where :math:`\sum_{part} \beta (V_{part} - U_g)` is the drag term in which :math:`V_{part}` represents the particle velocity.
 
 .. math:: \frac{\partial \varepsilon_g}{\partial t} + \nabla \cdot (\varepsilon_g  U_g)  = 0
-  :label: eqn::mass_vareps