Remove unused log_data() function

Remove unused log_data() function. If we ever need it, we can just
re-add it later.

beep-log.c

@@ -119,46 +119,6 @@ void log_verbose(const char *const module,
 }
 
 
-/* documented in header file */
-void log_data(const void *const buf, const size_t start_ofs, const size_t size)
-{
-    if (log_level <= 1) {
-        return;
-    }
-    const unsigned char *const ucbuf = buf;
-    static
-        const char hexchar[] = "0123456789abcdef";
-    char linebuf[80] =
-        "0000  __ __ __ __ __ __ __ __-__ __ __ __ __ __ __ __  ........-........";
-    for (size_t line_ofs=0, remaining=size; line_ofs<size; line_ofs+=16, remaining-=16) {
-        linebuf[0]    = hexchar[(line_ofs>>12) & 0xf];
-        linebuf[1]    = hexchar[(line_ofs>> 8) & 0xf];
-        linebuf[2]    = hexchar[(line_ofs>> 4) & 0xf];
-        linebuf[3]    = hexchar[(line_ofs>> 0) & 0xf];
-        const size_t line_cols = (remaining<16)? remaining : 16;
-        for (size_t col_ofs=0; col_ofs<line_cols; ++col_ofs) {
-            const size_t ofs = start_ofs + line_ofs + col_ofs;
-            const unsigned char ch = ucbuf[ofs];
-            const char hex_hi = hexchar[(ch >> 4) & 0x0f];
-            const char hex_lo = hexchar[(ch >> 0) & 0x0f];
-            linebuf[6+3*col_ofs+0]    = hex_hi;
-            linebuf[6+3*col_ofs+1]    = hex_lo;
-            linebuf[6+3*16+1+col_ofs+(col_ofs/8)] = ((0x20 <= ch) && (ch <= 0x7f)) ? (char)ch : '.';
-        }
-        for (size_t col_ofs=line_cols; col_ofs<16; ++col_ofs) {
-            linebuf[6+3*col_ofs+0]    = ' ';
-            linebuf[6+3*col_ofs+1]    = ' ';
-            linebuf[6+3*16+1+col_ofs+(col_ofs/8)] = ' ';
-        }
-        if (line_cols <= 8) {
-            linebuf[6+3*8-1]    = ' ';
-            linebuf[6+3*16+1+8] = ' ';
-        }
-        fprintf(stdout, "%s: %s: %s\n", progname, "Data", linebuf);
-    }
-}
-
-
 /* documented in header file */
 void log_init(const int argc, char *const argv[]) {
     /* If argv[0] is "/foo/bar/beep", set progname to "beep".

beep-log.h

@@ -82,11 +82,6 @@ void log_verbose(const char *const module,
     __attribute__(( format(printf, 2, 3) ));
 
 
-/** Log a range of data */
-void log_data(const void *const buf, const size_t start_ofs, const size_t size)
-    __attribute__(( nonnull(1) ));
-
-
 /** Initialize the log message prefix from the non-path part of argv[0]. */
 void log_init(const int argc, char *const argv[])
     __attribute__(( nonnull(2) ));