remove isempty test

Author: rdeits

src/b-splines/b-splines.jl

@@ -25,11 +25,7 @@ function BSplineInterpolation(::Type{TWeights}, A::AbstractArray{Tel,N}, ::IT, :
     for _ in 2:N
         c *= c
     end
-    if isempty(A)
-        T = Base.promote_op(*, typeof(c), Tel)
-    else
-        T = typeof(c*first(A))
-    end
+    T = typeof(c*first(A))
     BSplineInterpolation{T,N,typeof(A),IT,GT,pad}(A)
 end
 

src/gridded/gridded.jl

@@ -28,11 +28,7 @@ function GriddedInterpolation(::Type{TWeights}, knots::NTuple{N,GridIndex}, A::A
     for _ in 2:N
         c *= c
     end
-    if isempty(A)
-        T = Base.promote_op(*, typeof(c), Tel)
-    else
-        T = typeof(c*first(A))
-    end
+    T = typeof(c*first(A))
     GriddedInterpolation{T,N,TCoefs,IT,typeof(knts),pad}(knts, A)
 end