[HOTFIX] [SPARK-6896] [SQL] fix compile error in hive-thriftserver

SPARK-6440 #5424 import guava but did not promote guava dependency to compile level.

[INFO] compiler plugin: BasicArtifact(org.scalamacros,paradise_2.10.4,2.0.1,null)
[info] Compiling 8 Scala sources to /root/projects/spark/sql/hive-thriftserver/target/scala-2.10/classes...
[error] bad symbolic reference. A signature in Utils.class refers to term util
[error] in package com.google.common which is not available.
[error] It may be completely missing from the current classpath, or the version on
[error] the classpath might be incompatible with the version used when compiling Utils.class.
[error]
[error] while compiling: /root/projects/spark/sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkSQLEnv.scala
[error] during phase: erasure
[error] library version: version 2.10.4
[error] compiler version: version 2.10.4
[error] reconstructed args: -deprecation -classpath

Author: Daoyuan Wang <daoyuan.wang@intel.com>

Closes #5507 from adrian-wang/guava and squashes the following commits:

c337dad [Daoyuan Wang] fix compile error

sql/hive-thriftserver/pom.xml

@@ -44,7 +44,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>${hive.group}</groupId>