schemas: legacy: remove 'Board' Type

It is unclear to people what this config is for and likely not needed.
Based on discussion [1], remove it.

Tested: Schema Validator Pass

References:
[1] https://gerrit.openbmc.org/c/openbmc/entity-manager/+/79499/comment/15ec6f39_96ed31b1/

Change-Id: I8ad477910b8a41f437d688a577d076211d960baf
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/configurations/meta/ventura_ioboard.json b/configurations/meta/ventura_ioboard.json
index db470a4..7db4005 100644
--- a/configurations/meta/ventura_ioboard.json
+++ b/configurations/meta/ventura_ioboard.json
@@ -1,12 +1,5 @@
 {
-    "Exposes": [
-        {
-            "Address": "$address",
-            "Bus": "$bus",
-            "Name": "Ventura Rear IO BD $bus",
-            "Type": "Board"
-        }
-    ],
+    "Exposes": [],
     "Name": "Ventura Rear IO BD",
     "Probe": "xyz.openbmc_project.FruDevice({'BOARD_PRODUCT_NAME': 'Ventura Rear IO BD'})",
     "Type": "Board",
diff --git a/configurations/meta/ventura_ledboard.json b/configurations/meta/ventura_ledboard.json
index 9efb41f..e0b0253 100644
--- a/configurations/meta/ventura_ledboard.json
+++ b/configurations/meta/ventura_ledboard.json
@@ -1,12 +1,5 @@
 {
-    "Exposes": [
-        {
-            "Address": "$address",
-            "Bus": "$bus",
-            "Name": "Ventura RMC LED Board $bus",
-            "Type": "Board"
-        }
-    ],
+    "Exposes": [],
     "Name": "Ventura RMC LED Board",
     "Probe": "xyz.openbmc_project.FruDevice({'BOARD_PRODUCT_NAME': 'Ventura LED Board'})",
     "Type": "Board",
diff --git a/schemas/legacy.json b/schemas/legacy.json
index 8fe7132..263b09c 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -1088,7 +1088,6 @@
                 },
                 "Type": {
                     "enum": [
-                        "Board",
                         "INA233",
                         "ADM1281",
                         "ISL69269",