drop 'depreciated_skip..()'

src/frontend/inpcom.c

@@ -6166,14 +6166,15 @@ inp_quote_params(struct line *c, struct line *end_c, struct dependency *deps, in
 
                 char *rest = s + strlen(deps[i].param_name);
 
-                if ((isspace_c(s[-1]) || s[-1] == '=') &&
+                if (s > curr_line &&
+                    (isspace_c(s[-1]) || s[-1] == '=') &&
                     (isspace_c(*rest) || *rest == '\0' || *rest == ')'))
                 {
                     int prefix_len;
 
                     if (isspace_c(s[-1])) {
-                        s = depreciated_skip_back_ws(s);
-                        if (s[-1] == '{')
+                        s = skip_back_ws(s, curr_line);
+                        if (s > curr_line && s[-1] == '{')
                             s--;
                     }
 

src/include/ngspice/stringskip.h

@@ -4,8 +4,6 @@
 static inline char *skip_non_ws(const char *s)  { while (*s && !isspace_c(*s)) s++; return (char *) s; }
 static inline char *skip_ws(const char *s)      { while (       isspace_c(*s)) s++; return (char *) s; }
 
-static inline char *depreciated_skip_back_non_ws(char *s) { while (s[-1] && !isspace_c(s[-1])) s--; return s; }
-static inline char *depreciated_skip_back_ws(char *s)     { while (isspace_c(s[-1]))           s--; return s; }
 
 static inline char *skip_back_non_ws(const char *s, const char *start) { while (s > start && !isspace_c(s[-1])) s--; return (char *) s; }
 static inline char *skip_back_ws(const char *s, const char *start)     { while (s > start && isspace_c(s[-1])) s--; return (char *) s; }