Remove invalid return value from JVM JNA definition of sodium_bin2base64, since the actual return value is the pointer to the buffer containing encoded string, not an integer, and we don't use it in any case

multiplatform-crypto-libsodium-bindings/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/JnaLibsodiumInterface.kt

@@ -161,7 +161,7 @@ interface JnaLibsodiumInterface : Library {
         bin: ByteArray,
         binLength: Int,
         variant: Int
-    ): Int
+    )
 
     //    int sodium_base642bin(
     //    unsigned char * const bin, const size_t bin_maxlen,

multiplatform-crypto-libsodium-bindings/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/util/LibsodiumUtil.kt

@@ -71,7 +71,7 @@ actual object LibsodiumUtil {
             data.asByteArray(),
             data.size,
             variant.value
-        ).ensureLibsodiumSuccess()
+        )
         //Drop terminating char \0
         return String(result.sliceArray(0 until result.size - 1))
     }