fix a few linux compilation warnings

core/src/fpdftext/fpdf_text_int.cpp

Index: core/src/fpdftext/fpdf_text_int.cpp
diff --git a/core/src/fpdftext/fpdf_text_int.cpp b/core/src/fpdftext/fpdf_text_int.cpp
index 70178a54b0a875086bcc3578f7cd4412e0c870f5..bce9015a293c1cb09a6c2c243731f0b62dfab81a 100644
--- a/core/src/fpdftext/fpdf_text_int.cpp
+++ b/core/src/fpdftext/fpdf_text_int.cpp
@@ -1364,8 +1364,6 @@ void CPDF_TextPage::CloseTempLine()
             }
         }
     }
-    int ntext = m_TextBuf.GetSize();
-    ntext = m_charList.GetSize();
     order.RemoveAll();
     m_TempCharList.RemoveAll();
     m_TempTextBuf.Delete(0, m_TempTextBuf.GetLength());
@@ -2510,6 +2508,7 @@ void CPDF_TextPageFind::ExtractFindWhat(const CFX_WideString& findwhat)
             }
         }
         int pos = 0;
+        // TODO(tsepez): unused bLastIgnore is suspicious.
         FX_BOOL bLastIgnore = FALSE;
         while(pos < csWord.GetLength()) {
             CFX_WideString curStr = csWord.Mid(pos, 1);