Remove obsolete comment

Author: mjklemm

flang/tools/flang-driver/CMakeLists.txt

@@ -14,11 +14,6 @@ set( LLVM_LINK_COMPONENTS
 add_flang_tool(flang-new
   driver.cpp
   fc1_main.cpp
-
-  DEPENDS
-  # These libraries are used in the linker invocation generated by the driver
-  # (i.e. when constructing the linker job). Without them the driver would be
-  # unable to generate executables.
 )
 
 target_link_libraries(flang-new