TrackMemory tests: always remove CR before LF

It was removed for output containing ' =' via `s/ =.*//`. With classic
MinGW, this made lines with `free()` end with CRLF, but lines with e.g.
`malloc()` end with only LF. The tests expect LF only.

Closes https://github.com/curl/curl/pull/4788

tests/data/test1330

@@ -45,6 +45,7 @@ s/ =.*//
 s/\(.*\)/()/
 s/:\d+/:/
 s:^(MEM )(.*/)(.*):$1$3:
+s/\r\n/\n/
 </stripfile>
 </verify>
 

tests/data/test558

@@ -51,6 +51,7 @@ s/ =.*//
 s/\(.*\)/()/
 s/:\d+/:/
 s:^(MEM |FD )(.*/)(.*):$1$3:
+s/\r\n/\n/
 </stripfile>
 </verify>