[cmake] Remove VERSION property from executable targets

Summary:
Currently, in the default configuration, the "install" target will
install all llvm executables unversioned, except for three lldb tools
which will be installed versioned (with a non-versioned symlink). This
rectifies that situation.

Reviewers: beanz, sylvestre.ledru, mgorny

Subscribers: ki.stfu, lldb-commits

Differential Revision: https://reviews.llvm.org/D29126

llvm-svn: 293803

lldb/tools/driver/CMakeLists.txt

@@ -35,6 +35,3 @@ endif()
 if ( LLDB_CAN_USE_DEBUGSERVER )
   add_dependencies(lldb debugserver)
 endif()
-
-set_target_properties(lldb PROPERTIES VERSION ${LLDB_VERSION})
-

lldb/tools/lldb-mi/CMakeLists.txt

@@ -93,5 +93,3 @@ add_lldb_tool(lldb-mi
   LINK_COMPONENTS
     Support
   )
-
-set_target_properties(lldb-mi PROPERTIES VERSION ${LLDB_VERSION})

lldb/tools/lldb-server/CMakeLists.txt

@@ -192,5 +192,3 @@ if(NOT LLVM_LINK_LLVM_DYLIB)
 endif()
 
 target_link_libraries(lldb-server ${LLDB_SYSTEM_LIBS})
-
-set_target_properties(lldb-server PROPERTIES VERSION ${LLDB_VERSION})