Intending to remove an obsolete code

I intend to remove the obsolete code branches,
which correspond to values '0' of the macros listed below,
and the macros themselves. Any objections against it ? Thnx.

/* A temporary switch for the new logics of file path concatenation : */
#define NEW_COMBINE_PATH 1 /* 0 = old, 1 = new. */

/* Temporary switch for a new filling algorithm : */
#define DROPOUT_PREVENTION 1 /* 0 = old, 1 = new */
/* Temporary switch for a new type 1 hinter : */
#define NEW_TYPE1_HINTER 1 /* 0 = old, 1 = new */
/* A temporary switch to pattern stream accumulation in a device. */
#define PATTERN_STREAM_ACCUMULATION 1 /* old code = 0, new code = 1 */

Igor.