Remove prints from VExpress NOR flash driver

There are way too many flash accesses for these prints to be useful.
As a result, they clobber the output (when they are enabled). They
might have been useful when the driver was developed but now that
it is more mature, their existence is arguable.

Change-Id: Ie068000ad2319c5f58f8bb7c7c891a24f6d21fdf
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/drivers/io/vexpress_nor/io_vexpress_nor_hw.c b/drivers/io/vexpress_nor/io_vexpress_nor_hw.c
index de7b4ce..6e563c9 100644
--- a/drivers/io/vexpress_nor/io_vexpress_nor_hw.c
+++ b/drivers/io/vexpress_nor/io_vexpress_nor_hw.c
@@ -159,7 +159,6 @@
 	int err = IO_SUCCESS;
 	uint32_t status_register;
 
-	VERBOSE("%s : 0x%x\n", __func__, block_offset);
 	/* Request a block erase and then confirm it */
 	nor_send_cmd(block_offset, NOR_CMD_BLOCK_ERASE);
 	nor_send_cmd(block_offset, NOR_CMD_BLOCK_ERASE_ACK);
@@ -359,7 +358,6 @@
 	/* address passed should be block aligned */
 	assert(!(offset % fp->block_spec->block_size));
 
-	VERBOSE("%s : 0x%x\n", __func__, flash_pos);
 	/* Unlock block */
 	flash_unlock_block_if_necessary(fp->block_spec, block_offset);
 
@@ -398,7 +396,6 @@
 		*written = fp->block_spec->block_size;
 
 lock_block:
-	VERBOSE("%s : 0x%x\n", __func__, block_offset);
 	/* Lock the block once done */
 	flash_perform_lock_operation(fp->block_spec,
 					block_offset,