Remove misleading comment in sample dumpstate impl

HIDL_FETCH_IDumpstateDevice isn't defined simply
because this is a binderized service and this function
would be called (to no great use) if it was installed
to a device.

Bug: N/A
Test: N/A
Change-Id: I9b660af3fe329977cdcd0c3f485af651c34416cb

dumpstate/1.0/default/DumpstateDevice.cpp

@@ -35,8 +35,7 @@ namespace implementation {
 // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
 Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
     // NOTE: this is just an example on how to use the DumpstateUtil.h functions to implement
-    // this interface - since HIDL_FETCH_IDumpstateDevice() is not defined, this function will never
-    // be called by dumpstate.
+    // this interface.
 
     // Exit when dump is completed since this is a lazy HAL.
     addPostCommandTask([]() {