Remove an unused call to a primecount function that no longer exists.

sagemath-primecount.patch

@@ -0,0 +1,9 @@
+--- src/sage/libs/primecount.pxd.orig	2020-01-01 04:03:10.000000000 -0700
++++ src/sage/libs/primecount.pxd	2020-03-22 14:35:05.590527408 -0600
+@@ -17,6 +17,5 @@ cdef extern from "primecount.hpp" namesp
+     int get_num_threads()
+ 
+     cppstring get_max_x()
+-    cppstring get_max_x(double alpha)
+ 
+     cppstring primecount_version()

sagemath.spec

@@ -207,6 +207,9 @@ Patch29:	%{name}-tdlib.patch
 # Use local objects.inv for intersphinx since no network on koji builders
 Patch30:	%{name}-intersphinx.patch
 
+# Remove an unused call to a primecount function that no longer exists
+Patch31:	%{name}-primecount.patch
+
 BuildRequires:	4ti2
 BuildRequires:	arb-devel
 BuildRequires:	bliss-devel
@@ -906,6 +909,7 @@ popd
 %patch28
 %patch29
 %patch30
+%patch31
 
 sed -e 's|@@SAGE_ROOT@@|%{SAGE_ROOT}|' \
     -e 's|@@SAGE_DOC@@|%{SAGE_DOC}|' \