jpp: Make stream behavior unconditional and remove --stream, -s flag

Mirrors sentiments expressed here:

jmespath/jp#14 (comment)
jmespath/jp#14 (comment)

cmd/jpp/main.go

@@ -37,10 +37,6 @@ func main() {
 			Name:   "unquoted, u",
 			Usage:  "If the final result is a string, it will be printed without quotes.",
 		},
-		cli.BoolFlag{
-			Name:  "stream, s",
-			Usage: "Parse JSON elements until the input stream is exhausted (rather than just the first).",
-		},
 		cli.BoolFlag{
 			Name:  "ast",
 			Usage: "Only print the AST of the parsed expression.  Do not rely on this output, only useful for debugging purposes.",
@@ -135,9 +131,6 @@ func runMain(c *cli.Context) int {
 			os.Stdout.Write(toJSON)
 		}
 		os.Stdout.WriteString("\n")
-		if !c.Bool("stream") {
-			break
-		}
 	}
 	return 0
 }

test/cases/search.bats

@@ -20,7 +20,7 @@
 }
 
 @test "Processes subsequent data in stream mode" {
-  output=$(echo '{"foo": "bar"}{"foo": "x"}' | ./jpp -s foo)
+  output=$(echo '{"foo": "bar"}{"foo": "x"}' | ./jpp foo)
   echo "$output"
   [ "$output" == $'\"bar\"\n\"x\"' ]
 }