wandboard: Remove repeated PMIC string

After the conversion to DM_PMIC the following output is seen:

PMIC:  PMIC:  PFUZE100 ID=0x10

Remove the unnecessary PMIC string from the board file to
avoid the repetead string.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
diff --git a/board/wandboard/wandboard.c b/board/wandboard/wandboard.c
index b2f961a..f4534dd 100644
--- a/board/wandboard/wandboard.c
+++ b/board/wandboard/wandboard.c
@@ -361,8 +361,6 @@
 	struct udevice *dev;
 	int reg, ret;
 
-	puts("PMIC:  ");
-
 	ret = pmic_get("pfuze100@8", &dev);
 	if (ret < 0) {
 		printf("pmic_get() ret %d\n", ret);