Janitorial clean-up.

Remove some unused variables and convert files with CRNL line endings
to files with NL line endings.

src/complex/input/cl_N_read.cc

@@ -164,13 +164,11 @@ not_rational_syntax:
 		}
 		var const char * ptr_after_sign = ptr;
 		var const char * ptr_after_intpart = skip_digits(ptr_after_sign,string_limit,float_base);
-		var bool have_dot = false;
 		var const char * ptr_before_fracpart = ptr_after_intpart;
 		var const char * ptr_after_fracpart = ptr_after_intpart;
 		ptr = ptr_after_intpart;
 		if (ptr != string_limit)
 		  if (*ptr == '.') {
-			have_dot = true;
 			ptr_before_fracpart = ptr+1;
 			ptr_after_fracpart = skip_digits(ptr_before_fracpart,string_limit,float_base);
 		}

src/float/input/cl_F_read.cc

@@ -75,13 +75,11 @@ const cl_F read_float (const cl_read_flags& flags, const char * string, const ch
 		}
 		var const char * ptr_after_sign = ptr;
 		var const char * ptr_after_intpart = skip_digits(ptr_after_sign,string_limit,float_base);
-		var bool have_dot = false;
 		var const char * ptr_before_fracpart = ptr_after_intpart;
 		var const char * ptr_after_fracpart = ptr_after_intpart;
 		ptr = ptr_after_intpart;
 		if (ptr != string_limit)
 		  if (*ptr == '.') {
-			have_dot = true;
 			ptr_before_fracpart = ptr+1;
 			ptr_after_fracpart = skip_digits(ptr_before_fracpart,string_limit,float_base);
 		}

src/real/input/cl_R_read.cc

@@ -165,13 +165,11 @@ not_rational_syntax:
 		}
 		var const char * ptr_after_sign = ptr;
 		var const char * ptr_after_intpart = skip_digits(ptr_after_sign,string_limit,float_base);
-		var bool have_dot = false;
 		var const char * ptr_before_fracpart = ptr_after_intpart;
 		var const char * ptr_after_fracpart = ptr_after_intpart;
 		ptr = ptr_after_intpart;
 		if (ptr != string_limit)
 		  if (*ptr == '.') {
-			have_dot = true;
 			ptr_before_fracpart = ptr+1;
 			ptr_after_fracpart = skip_digits(ptr_before_fracpart,string_limit,float_base);
 		}