Remove old flags from SuiteSparse 5. (#370)

Author: ViralBShah

gen/generator.jl

@@ -38,9 +38,6 @@ for target in JLLEnvs.JLL_ENV_TRIPLES
 
     args = get_default_args(target)
     push!(args, "-I$include_dir")
-    if startswith(target, "x86_64") || startswith(target, "powerpc64le") || startswith(target, "aarch64")
-        push!(args, "-DSUN64 -DLONGBLAS='long long' -D'SuiteSparse_long_max=9223372036854775801'")
-    end
 
     header_files = [cholmod_h, SuiteSparseQR_C_h, amd_h, colamd_h, ccolamd_h, umfpack_h]