Remove windowsx86 platform from libgrapplefrc (#186)

WPILib doesn't support windowsx86 and the artifacts don't exist in
Grapple's maven repo.

Author: rzblue

2025/libgrapplefrc-2025.0.8.json

@@ -22,7 +22,6 @@
             "isJar": false,
             "validPlatforms": [
                 "windowsx86-64",
-                "windowsx86",
                 "linuxarm64",
                 "linuxx86-64",
                 "linuxathena",
@@ -42,7 +41,6 @@
             "skipInvalidPlatforms": true,
             "binaryPlatforms": [
                 "windowsx86-64",
-                "windowsx86",
                 "linuxarm64",
                 "linuxx86-64",
                 "linuxathena",
@@ -60,7 +58,6 @@
             "skipInvalidPlatforms": true,
             "binaryPlatforms": [
                 "windowsx86-64",
-                "windowsx86",
                 "linuxarm64",
                 "linuxx86-64",
                 "linuxathena",