Remove legacy build file.

Change-Id: I827664a5bb11bcea3176449cbf766b6cb3b93696

runtime/hsa-runtime/loader/CMakeLists.txt

@@ -1,16 +0,0 @@
-#
-# loader library
-#
-# This file is expected to be included from top-level CMakeLists.txt.
-#
-# Dependencies:
-# - Compiler definitions
-# - amdhsacode library
-#
-# Defines:
-# - amdhsaloader library and target include directories
-
-file(GLOB sources *.cpp *.hpp)
-add_library(amdhsaloader ${sources})
-target_include_directories(amdhsaloader PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_libraries(amdhsaloader amdhsacode)