[ProfCheck] Fix paths for profcheck annotated script

Buildbot does the checkout in BUILDBOT_ROOT/llvm-project and then does the
build in BUILDBOT_ROOT/build. Make the script reflect this.

Author: boomanaiden154

zorg/buildbot/builders/annotated/profcheck.sh

@@ -2,10 +2,6 @@
 
 set -ex
 
-rm -rf build
-mkdir build
-cd build
-
 echo @@@CMake@@@
 
 cmake -GNinja \
@@ -15,9 +11,10 @@ cmake -GNinja \
   -DCMAKE_CXX_COMPILER_LAUNCHER=sccache \
   -DLLVM_LIT_ARGS='--exclude-xfail' \
   -DLLVM_ENABLE_PROFCHECK=ON \
-  ../llvm
+  ../llvm-project/llvm
 
 echo @@@Ninja@@@
 
 export LIT_XFAIL="$(cat ../llvm/utils/profcheck-xfail.txt | tr '\n' ';')"
 ninja check-llvm
+