Removed $tries from signature and docs of is-prime to bring docs in line

with rakudo commit 59cb611af9

Author: dha

lib/Type/Int.pod

@@ -38,12 +38,11 @@ Returns the given C<Int> raised to the C<$y> power within modulus C<$mod>.
 
 =head2 routine is-prime
 
-    multi sub    is-prime (Int:D $number, Int $tries = 100) returns Bool:D
-    multi method is-prime (Int:D: Int $tries = 100) returns Bool:D
+    multi sub    is-prime (Int:D $number) returns Bool:D
+    multi method is-prime (Int:D:) returns Bool:D
 
 Returns C<True> if this C<Int> is known to be a prime, or is likely to be a
-prime based on a probabilistic Miller-Rabin test. C<$tries> is the maximal
-number of iterations the test is allowed to do.
+prime based on a probabilistic Miller-Rabin test.
 
 Returns C<False> if this C<Int> is known not to be a prime.