Update src/simulation/m_riemann_solvers.fpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Malmahrouqi3

src/simulation/m_riemann_solvers.fpp

@@ -1210,7 +1210,6 @@ contains
         integer :: i, j, k, l, q !< Generic loop iterators
         integer :: idx1, idxi
         type(riemann_states) :: c_fast, vel
-        integer :: loop_end
 
         ! Populating the buffers of the left and right Riemann problem
         ! states variables, based on the choice of boundary conditions