tools/fiddle: remove unused fiddler.go

tools/fiddle/fiddle_test

 #!/bin/sh
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script for building Fiddle build bots.
 
 set -e
 set -x
 
 cd "$(dirname "$0")"
 fiddle_dir="$PWD"
 cd "../.."
 skia_dir="$PWD"
 
 if ! command -v cmake > /dev/null 2>&1 ; then
     cores=32
     echo "Bootstrapping CMake"
     cmake_dir="${skia_dir}/third_party/externals/cmake"
-    cd "$cmake_dir"
-    ./bootstrap --parallel=$cores
-    make -j $cores cmake
+    (
+        cd "$cmake_dir"
+        ./bootstrap --parallel=$cores
+        make -j $cores cmake
+    )
     export PATH="${cmake_dir}/bin:${PATH}"
 fi
 
 echo "Building Skia and Fiddle"
+(
+    cd "${skia_dir}/cmake"
+    cmake -G Ninja .
+    ninja skia
+)
+
+tmp=$(mktemp -d "${TMPDIR:-/tmp}/fiddle_test.XXXXXXXXXX")
+
 cd "$fiddle_dir"
-git clean -fxd .
-go build fiddler.go
-./fiddler "$skia_dir"
-./fiddler "$skia_dir" draw.cpp > /dev/null
 
-echo "cleaning up"
-git clean -fxd .
+${CXX:-c++} \
+    "@../../cmake/skia_compile_arguments.txt" \
+    -o "${tmp}/fiddle" \
+    "fiddle_main.cpp" \
+    "draw.cpp" \
+    -lOSMesa \
+    "@../../cmake/skia_link_arguments.txt"
+
+"${tmp}/fiddle" | sha1sum