Fix JSS self tests to not use DSA and generate < 2048 bit RSA keys
Remove / modify JSS self test code that previously generated DSA key pairs and RSA key pairs of < 2048 bit sizes. Also remove tests generating RSA key pairs with smaller than the minimum exponent sizes.
Fix JSS self tests to not use DSA and generate < 2048 bit RSA keys
Remove / modify JSS self test code that previously generated DSA key pairs and RSA key pairs of < 2048 bit sizes. Also remove tests generating RSA key pairs with smaller than the minimum exponent sizes.