Address the rest remarks

Author: vlad-perevezentsev

dpnp/backend/kernels/elementwise_functions/interpolate.hpp

@@ -47,6 +47,8 @@ sycl::event interpolate_impl(sycl::queue &q,
                              const std::size_t xp_size,
                              const std::vector<sycl::event> &depends)
 {
+    // Selected over the work-group version
+    // due to simpler execution and slightly better performance.
     return q.submit([&](sycl::handler &h) {
         h.depends_on(depends);
         h.parallel_for(sycl::range<1>(n), [=](sycl::id<1> i) {

dpnp/dpnp_iface_mathematical.py

@@ -2919,8 +2919,6 @@ def interp(x, xp, fp, left=None, right=None, period=None):
         fp = fp[asort_xp]
         xp = dpnp.concatenate((xp[-1:] - period, xp, xp[0:1] + period))
         fp = dpnp.concatenate((fp[-1:], fp, fp[0:1]))
-        assert xp.flags.c_contiguous
-        assert fp.flags.c_contiguous
 
     idx = dpnp.searchsorted(xp, x, side="right")
     left_usm = _validate_interp_param(left, "left", exec_q, usm_type, fp.dtype)