[fuchsia] Don't include duplicate profiling symbols for Fuchsia

[tmandry]

Summary

InstrProfilingPlatformLinux.c already provides these symbols. Linker order
saved us from noticing before.

[mcgrathr]

Lgtm

compiler-rt/lib/profile/InstrProfilingPlatformOther.c

 /*===- InstrProfilingPlatformOther.c - Profile data default platform ------===*\
 |*
 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 |* See https://llvm.org/LICENSE.txt for license information.
 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 |*
 \*===----------------------------------------------------------------------===*/
 
 #if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__) &&     \
-    !(defined(__sun__) && defined(__svr4__)) && !defined(__NetBSD__) &&        \
-    !defined(_WIN32)
+    !defined(__Fuchsia__) && !(defined(__sun__) && defined(__svr4__)) &&       \
+    !defined(__NetBSD__) && !defined(_WIN32)
 
 #include <stdlib.h>
 #include <stdio.h>
 
 #include "InstrProfiling.h"
 #include "InstrProfilingInternal.h"
 
 static const __llvm_profile_data *DataFirst = NULL;