Fix format of the targets JSON files

riscv32ec-unknown-none-elf.json

@@ -1,18 +1,18 @@
 {
-    "arch": "riscv32",
-    "atomic-cas": false,
-    "cpu": "generic-rv32",
-    "crt-objects-fallback": "false",
-    "data-layout": "e-m:e-p:32:32-i64:64-n32-S32",
-    "eh-frame-header": false,
-    "emit-debug-gdb-scripts": false,
-    "features": "+e,+c,+forced-atomics",
-    "linker": "rust-lld",
-    "linker-flavor": "gnu-lld",
-    "llvm-target": "riscv32",
-    "llvm-abiname": "ilp32e",
-    "max-atomic-width": 32,
-    "panic-strategy": "abort",
-    "relocation-model": "static",
-    "target-pointer-width": "32"
-  }
+  "arch": "riscv32",
+  "atomic-cas": false,
+  "cpu": "generic-rv32",
+  "crt-objects-fallback": "false",
+  "data-layout": "e-m:e-p:32:32-i64:64-n32-S32",
+  "eh-frame-header": false,
+  "emit-debug-gdb-scripts": false,
+  "features": "+e,+c,+forced-atomics",
+  "linker": "rust-lld",
+  "linker-flavor": "gnu-lld",
+  "llvm-target": "riscv32",
+  "llvm-abiname": "ilp32e",
+  "max-atomic-width": 32,
+  "panic-strategy": "abort",
+  "relocation-model": "static",
+  "target-pointer-width": "32"
+}

riscv32imfc-unknown-none-elf.json

@@ -7,11 +7,10 @@
   "eh-frame-header": false,
   "emit-debug-gdb-scripts": false,
   "features": "+m,+f,+c,+forced-atomics",
-  "is-builtin": false,
   "linker": "rust-lld",
   "linker-flavor": "gnu-lld",
-  "llvm-abiname": "ilp32f",
   "llvm-target": "riscv32",
+  "llvm-abiname": "ilp32f",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "relocation-model": "static",