Remove exception in Randomizer::shuffleArray()

Same reasoning as in the previous commit applies.

Author: TimWolla

ext/random/randomizer.c

@@ -193,7 +193,6 @@ PHP_METHOD(Random_Randomizer, shuffleArray)
 
 	ZVAL_DUP(return_value, array);
 	if (!php_array_data_shuffle(randomizer->algo, randomizer->status, return_value)) {
-		zend_throw_exception(spl_ce_RuntimeException, "Random number generation failed", 0);
 		RETURN_THROWS();
 	}
 }

ext/random/tests/03_randomizer/user_unsafe.phpt

@@ -95,11 +95,6 @@ Stack trace:
 #0 %s(%d): Random\Randomizer->shuffleArray(Array)
 #1 {main}
 
-Next RuntimeException: Random number generation failed in %s:%d
-Stack trace:
-#0 %s(%d): Random\Randomizer->shuffleArray(Array)
-#1 {main}
-
 -------
 
 Error: A random engine must return a non-empty string in %s:%d
@@ -132,11 +127,6 @@ Stack trace:
 #0 %s(%d): Random\Randomizer->shuffleArray(Array)
 #1 {main}
 
-Next RuntimeException: Random number generation failed in %s:%d
-Stack trace:
-#0 %s(%d): Random\Randomizer->shuffleArray(Array)
-#1 {main}
-
 -------
 
 Error: Failed to generate an acceptable random number in 50 attempts in %s:%d