FPGA Analogin test: Remove usage of FULL_TEST_SHIELD symbol

Keep "AnalogIn - full test" disabled due to hardware issue in the first rev of FPGA Test Shield.

Author: mprse

TESTS/mbed_hal_fpga_ci_test_shield/analogin/main.cpp

@@ -142,7 +142,8 @@ void analogin_full_test(PinName pin)
 Case cases[] = {
     // This will be run for all pins
     Case("AnalogIn - init test", all_ports<AnaloginPort, DefaultFormFactor, analogin_init>),
-#if defined(FULL_TEST_SHIELD)
+    // This test case is disabled for now due to hardware issue in the first rev of FPGA Test Shield
+#if 0
     Case("AnalogIn - full test", all_ports<AnaloginPort, DefaultFormFactor, analogin_full_test>),
 #endif