Revert "Add <exec_target_name>_EXE_DISABLE to TRIBITS_ADD_EXECUTABLE() (

TriBITSPub/TriBITS#216)"

This reverts commit 3a3bde5.

This is being removed because it was added to TriBITS proper and will be part
of the next snapshot of TriBITS which is going to be committed in the very
next commit.

cmake/tribits/core/package_arch/TribitsAddExecutable.cmake

@@ -391,7 +391,6 @@ FUNCTION(TRIBITS_ADD_EXECUTABLE EXE_NAME)
   IF(PARSE_ADDED_EXE_TARGET_NAME_OUT)
     SET(${PARSE_ADDED_EXE_TARGET_NAME_OUT} PARENT_SCOPE)
   ENDIF()
-
   #
   # B) Exclude building the test executable based on some criteria
   #
@@ -441,14 +440,6 @@ FUNCTION(TRIBITS_ADD_EXECUTABLE EXE_NAME)
     SET(EXE_BINARY_NAME ${PACKAGE_NAME}_${EXE_BINARY_NAME})
   ENDIF()
 
-  # Exclude the build if requested
-  IF (${EXE_BINARY_NAME}_EXE_DISABLE)
-    MESSAGE("-- "
-      "${EXE_BINARY_NAME} EXE NOT being built due to ${EXE_BINARY_NAME}_EXE_DISABLE="
-      "'${${EXE_BINARY_NAME}_EXE_DISABLE}'")
-    RETURN()
-  ENDIF()
-
   # If exe is in subdirectory prepend that dir name to the source files
   IF(PARSE_DIRECTORY )
     FOREACH( SOURCE_FILE ${PARSE_SOURCES} )