pw_env_setup: remove host gcc

The host gcc wasn't what we wanted it to be. We may need to build it
ourself.

Change-Id: I9f1692bcc41306123401ec342fcb0bde56823adb
diff --git a/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json b/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
index 3d086e6..1ae3092 100644
--- a/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
+++ b/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
@@ -111,11 +111,5 @@
     "tags": [
       "version:0.0.43"
     ]
-  },
-  {
-    "path": "fuchsia/third_party/gcc/${os=linux,mac}-${arch=amd64}",
-    "tags": [
-      "git_revision:1a2a0af530cacca88bd65bf55d512aed03646f76,4c09b8c4e7fbe03e2b2b976399025fd846317527"
-    ]
   }
 ]