remove duplicate pico_rand inclusion in kitchen_sink (#1206)

diff --git a/test/kitchen_sink/CMakeLists.txt b/test/kitchen_sink/CMakeLists.txt
index 4b98646..0ab07aa 100644
--- a/test/kitchen_sink/CMakeLists.txt
+++ b/test/kitchen_sink/CMakeLists.txt
@@ -41,7 +41,6 @@
     pico_time
     pico_unique_id
     pico_util
-    pico_rand
 )
 
 add_library(kitchen_sink_options INTERFACE)
diff --git a/test/kitchen_sink/kitchen_sink.c b/test/kitchen_sink/kitchen_sink.c
index 6f23393..03ec8dd 100644
--- a/test/kitchen_sink/kitchen_sink.c
+++ b/test/kitchen_sink/kitchen_sink.c
@@ -33,6 +33,9 @@
 #include "pico/binary_info.h"
 #include "pico/bit_ops.h"
 #include "pico/bootrom.h"
+#if LIB_PICO_CYW43_ARCH
+#include "pico/cyw43_arch.h"
+#endif
 #include "pico/divider.h"
 #include "pico/double.h"
 #include "pico/fix/rp2040_usb_device_enumeration.h"
@@ -48,10 +51,6 @@
 #include "pico/sync.h"
 #include "pico/time.h"
 #include "pico/unique_id.h"
-#include "pico/rand.h"
-#if LIB_PICO_CYW43_ARCH
-#include "pico/cyw43_arch.h"
-#endif
 
 #include "hardware/structs/adc.h"
 #include "hardware/structs/bus_ctrl.h"