Trac #33208: Remove unused code from sage/rings/padics/pow_computer_e…

…xt.pyx

The declaration of `tmp` and the reading of its value into the void
below clearly serve no purpose, and raise a cython warning:

{{{#!python
def polynomial(self):
    ...
    cdef ZZ_pX_Modulus_c* tmp
    tmp.val()
    self.restore_top_context()
    cdef ntl_ZZ_pX r = ntl_ZZ_pX.__new__(ntl_ZZ_pX)
    r.c = self.get_top_context()
    r.x = (self.get_top_modulus()[0]).val()
    return r
}}}

URL: https://trac.sagemath.org/33208
Reported by: mjo
Ticket author(s): Michael Orlitzky
Reviewer(s): Frédéric Chapoton

src/sage/rings/padics/pow_computer_ext.pyx

@@ -793,8 +793,6 @@ cdef class PowComputer_ZZ_pX(PowComputer_ext):
             sage: PC.polynomial()
             [9765620 0 1]
         """
-        cdef ZZ_pX_Modulus_c* tmp
-        tmp.val()
         self.restore_top_context()
         cdef ntl_ZZ_pX r = ntl_ZZ_pX.__new__(ntl_ZZ_pX)
         r.c = self.get_top_context()