Remove old unused functions

str_XXX functions are replaced with string class

kernel/include/utils.hpp

@@ -18,12 +18,7 @@ uint64_t parse(const char* str);
 uint64_t parse(const char* str, const char* end);
 uint64_t parse(const string& str);
 
-bool str_equals(const char* a, const char* b);
-bool str_contains(const char* a, char c);
-void str_copy(const char* a, char* b);
 uint64_t str_len(const char* a);
-const char* str_until(char* a, char c);
-const char* str_from(char* a, char c);
 
 void memset(void * ptr, uint8_t value, size_t num);
 int memcmp(const void* s1, const void* s2, size_t n);

kernel/src/utils.cpp

@@ -46,15 +46,6 @@ void memcopy(void* destination, const void* source, size_t n){
     }
 }
 
-bool str_equals(const char* a, const char* b){
-    while(*a && *a == *b){
-        ++a;
-        ++b;
-    }
-
-    return *a == *b;
-}
-
 uint64_t parse(const char* it, const char* end){
     int i = end - it - 1;
 
@@ -92,25 +83,6 @@ uint64_t parse(const string& str){
     return parse(str.begin(), str.end());
 }
 
-bool str_contains(const char* a, char c){
-    while(*a){
-        if(*a == c){
-            return true;
-        }
-        ++a;
-    }
-
-    return false;
-}
-
-void str_copy(const char* a, char* b){
-    while(*a){
-        *b++ = *a++;
-    }
-
-    *b = '\0';
-}
-
 uint64_t str_len(const char* a){
     uint64_t length = 0;
     while(*a++){
@@ -118,28 +90,3 @@ uint64_t str_len(const char* a){
     }
     return length;
 }
-
-const char* str_until(char* a, char c){
-    char* it = a;
-    while(*it){
-        if(*it == c){
-            *it = '\0';
-            return a;
-        }
-        ++it;
-    }
-
-    return a;
-}
-
-const char* str_from(char* a, char c){
-    char* it = a;
-    while(*it){
-        if(*it == c){
-            return ++it;
-        }
-        ++it;
-    }
-
-    return a;
-}