Revert "Reland "adb: daemon: Assign valid fd to usb_handle ep0 file descriptor""

This reverts commit d9684d5943.

This seems to be correlated with an increase in the rate of devices
going offline. Revert it to see if failure rates improve.

Bug: http://b/150863651
Test: treehugger
Change-Id: Ia6163fd9e31d2bf812628e028249662594ac2024

adb/daemon/usb_ffs.cpp

@@ -300,7 +300,6 @@ bool open_functionfs(android::base::unique_fd* out_control, android::base::uniqu
         }
         // Signal only when writing the descriptors to ffs
         android::base::SetProperty("sys.usb.ffs.ready", "1");
-        *out_control = std::move(control);
     }
 
     bulk_out.reset(adb_open(USB_FFS_ADB_OUT, O_RDONLY));
@@ -315,6 +314,7 @@ bool open_functionfs(android::base::unique_fd* out_control, android::base::uniqu
         return false;
     }
 
+    *out_control = std::move(control);
     *out_bulk_in = std::move(bulk_in);
     *out_bulk_out = std::move(bulk_out);
     return true;