Fix compiler warnings caused by empty statements

Signed-off-by: Stefan Weil <sw@weilnetz.de>

src/ccutil/ambigs.cpp

@@ -142,7 +142,6 @@ void UnicharAmbigs::LoadUnicharAmbigs(const UNICHARSET &encoder_set, TFile *ambi
             for (j = 0;
                  j < adaption_ambigs_entry->size() && (*adaption_ambigs_entry)[j] > id_to_insert;
                  ++j) {
-              ;
             }
             if (j < adaption_ambigs_entry->size()) {
               if ((*adaption_ambigs_entry)[j] != id_to_insert) {

src/ccutil/unicharset.h

@@ -614,7 +614,6 @@ public:
     if (INVALID_UNICHAR_ID == unichar_id) {
       *width = 0.0f;
       *width_sd = 0.0f;
-      ;
       return;
     }
     ASSERT_HOST(contains_unichar_id(unichar_id));

src/textord/makerow.cpp

@@ -2336,7 +2336,6 @@ void assign_blobs_to_rows( // find lines
     if (!row_it.empty()) {
       for (row_it.move_to_first(); !row_it.at_last() && row_it.data()->min_y() > top;
            row_it.forward()) {
-        ;
       }
       row = row_it.data();
       if (row->min_y() <= top && row->max_y() >= bottom) {

src/textord/oldbasel.cpp

@@ -174,14 +174,12 @@ void Textord::correlate_neighbours(TO_BLOCK *block, // block rows are in.
            otherrow >= 0 && (rows[otherrow]->xheight < 0.0 ||
                              !row->baseline.overlap(&rows[otherrow]->baseline, MAXOVERLAP));
            otherrow--) {
-        ;
       }
       upperrow = otherrow; /*decent row above */
       for (otherrow = rowindex + 1;
            otherrow < rowcount && (rows[otherrow]->xheight < 0.0 ||
                                    !row->baseline.overlap(&rows[otherrow]->baseline, MAXOVERLAP));
            otherrow++) {
-        ;
       }
       lowerrow = otherrow; /*decent row below */
       if (upperrow >= 0) {
@@ -1107,13 +1105,11 @@ int segment_spline(             // make xstarts
       /*find rising y centre */
       for (ptindex = turnpoints[segment - 1] + 1;
            ptindex < turnpoints[segment] && ycoords[ptindex + 1] <= lastmax; ptindex++) {
-        ;
       }
     } else {
       /*find falling y centre */
       for (ptindex = turnpoints[segment - 1] + 1;
            ptindex < turnpoints[segment] && ycoords[ptindex + 1] >= lastmax; ptindex++) {
-        ;
       }
     }
 

src/textord/pithsync.cpp

@@ -669,7 +669,6 @@ double check_pitch_sync3(    // find segmentation
   do {
     for (x = best_end->position() - pitch + pitch_error;
          x < best_end->position() - pitch_error && projection->pile_count(x) == 0; x++) {
-      ;
     }
     if (x < best_end->position() - pitch_error) {
       occupation_count++;

src/textord/strokewidth.cpp

@@ -161,7 +161,6 @@ void StrokeWidth::FindTextlineDirectionAndFixBrokenCJK(PageSegMode pageseg_mode,
   InsertBlobs(input_block);
   // Repair broken CJK characters if needed.
   while (cjk_merge && FixBrokenCJK(input_block)) {
-    ;
   }
   // Grade blobs by inspection of neighbours.
   FindTextlineFlowDirection(pageseg_mode, false);