fixup! mingw (git_terminal_prompt): work around BusyBox & WSL issues

We do not actually need this, as `bash` is not a BusyBox applet, and
in the unlikely event anybody would call `git.exe` from within WSL, they
would use `/cmd/git.exe` which puts the MSYS2 `bash.exe` into the `PATH`
before the WSL `bash`.

This reverts commit 040d9db.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

compat/terminal.c

@@ -101,10 +101,8 @@ static char *shell_prompt(const char *prompt, int echo)
 	const char *read_input[] = {
 		/* Note: call 'bash' explicitly, as 'read -s' is bash-specific */
 		"bash", "-c", echo ?
-		"test \"a$SHELL\" != \"a${SHELL%.exe}\" || exit 127; cat >/dev/tty &&"
-		" read -r line </dev/tty && echo \"$line\"" :
-		"test \"a$SHELL\" != \"a${SHELL%.exe}\" || exit 127; cat >/dev/tty &&"
-		" read -r -s line </dev/tty && echo \"$line\" && echo >/dev/tty",
+		"cat >/dev/tty && read -r line </dev/tty && echo \"$line\"" :
+		"cat >/dev/tty && read -r -s line </dev/tty && echo \"$line\" && echo >/dev/tty",
 		NULL
 	};
 	struct child_process child = CHILD_PROCESS_INIT;
@@ -140,10 +138,7 @@ static char *shell_prompt(const char *prompt, int echo)
 	close(child.out);
 	code = finish_command(&child);
 	if (code) {
-		if (code != 127)
-			error("failed to execute prompt script (exit code %d)",
-			      code);
-
+		error("failed to execute prompt script (exit code %d)", code);
 		return NULL;
 	}