Remove additional legacy build file.

Change-Id: Ib166ad9856114a4a846f37ff99bac4f870c414d9

runtime/hsa-runtime/libamdhsacode/CMakeLists.txt

@@ -1,17 +0,0 @@
-#
-# amdhsacode library
-#
-# This file is expected to be included from top-level CMakeLists.txt.
-#
-# Dependencies:
-# - Compiler definitions
-# - elf library
-#
-# Defines:
-# - amdhsacode library and target include directories
-
-file(GLOB sources *.cpp *.hpp)
-find_package(LibElf REQUIRED)
-add_library(amdhsacode ${sources})
-target_include_directories(amdhsacode PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_libraries(amdhsacode elf)