Unused parameter in AnalysisSurfaceIntegral constructor

[DanielDoehring]

semi in

Trixi.jl/src/callbacks_step/analysis_surface_integral_2d.jl

Lines 32 to 36 in e1aabb3

	function AnalysisSurfaceIntegral(semi,
	boundary_symbols::NTuple{NBoundaries, Symbol},
	variable) where {NBoundaries}
	return new{typeof(variable), NBoundaries}(variable, boundary_symbols)
	end

is since #1959 not used anymore. I forgot to change the the signature, sorry for this avoidable hazzle.

This should be taken care of in the next breaking release (0.9).