Reduce size of heap block device test

to fit into smaller targets

Author: theotherjimmy

features/TESTS/filesystem/heap_block_device/main.cpp

@@ -24,11 +24,7 @@
 using namespace utest::v1;
 
 #define TEST_BLOCK_SIZE 512
-#if MBED_SMALL_TARGET
-#    define TEST_BLOCK_DEVICE_SIZE 8*TEST_BLOCK_SIZE
-#else
-#    define TEST_BLOCK_DEVICE_SIZE 16*TEST_BLOCK_SIZE
-#endif
+#define TEST_BLOCK_DEVICE_SIZE 8*TEST_BLOCK_SIZE
 #define TEST_BLOCK_COUNT 10
 #define TEST_ERROR_MASK 16